diff --git a/database/0.9/1729962056556-createUserEffect/Down/01-table-userEffect.sql b/database/0.9/1729962056556-createUserEffect/Down/01-table-userEffect.sql
new file mode 100644
index 0000000..ca2a800
--- /dev/null
+++ b/database/0.9/1729962056556-createUserEffect/Down/01-table-userEffect.sql
@@ -0,0 +1 @@
+DROP TABLE `user_effect`;
diff --git a/database/0.9/1729962056556-createUserEffect/Up/01-table-userEffect.sql b/database/0.9/1729962056556-createUserEffect/Up/01-table-userEffect.sql
new file mode 100644
index 0000000..17c1811
--- /dev/null
+++ b/database/0.9/1729962056556-createUserEffect/Up/01-table-userEffect.sql
@@ -0,0 +1,10 @@
+CREATE TABLE `user_effect` (
+    `Id` varchar(255) NOT NULL,
+    `WhenCreated` datetime NOT NULL,
+    `WhenUpdated` datetime NOT NULL,
+    `Name` varchar(255) NOT NULL,
+    `UserId` varchar(255) NOT NULL,
+    `Unused` int NOT NULL DEFAULT 0,
+    `WhenExpires` datetime NULL,
+    PRIMARY KEY (`Id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
diff --git a/jest.setup.js b/jest.setup.js
index d583d1a..8e9ae9a 100644
--- a/jest.setup.js
+++ b/jest.setup.js
@@ -1,3 +1,4 @@
 jest.setTimeout(1 * 1000); // 1 second
 jest.resetModules();
-jest.resetAllMocks();
\ No newline at end of file
+jest.resetAllMocks();
+jest.useFakeTimers();
\ No newline at end of file
diff --git a/package.json b/package.json
index 8a5bf43..0dc2630 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "clean": "rm -rf node_modules/ dist/",
     "build": "tsc",
     "start": "node ./dist/bot.js",
-    "test": "echo true",
+    "test": "jest",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
     "db:up": "typeorm migration:run -d dist/database/dataSources/appDataSource.js",
diff --git a/src/database/entities/app/UserEffect.ts b/src/database/entities/app/UserEffect.ts
new file mode 100644
index 0000000..fa1b584
--- /dev/null
+++ b/src/database/entities/app/UserEffect.ts
@@ -0,0 +1,60 @@
+import {Column, Entity} from "typeorm";
+import AppBaseEntity from "../../../contracts/AppBaseEntity";
+import AppDataSource from "../../dataSources/appDataSource";
+
+@Entity()
+export default class UserEffect extends AppBaseEntity {
+    constructor(name: string, userId: string, unused: number, WhenExpires?: Date) {
+        super();
+
+        this.Name = name;
+        this.UserId = userId;
+        this.Unused = unused;
+        this.WhenExpires = WhenExpires;
+    }
+
+    @Column()
+    Name: string;
+
+    @Column()
+    UserId: string;
+
+    @Column()
+    Unused: number;
+
+    @Column({ nullable: true })
+    WhenExpires?: Date;
+
+    public AddUnused(amount: number) {
+        this.Unused += amount;
+    }
+
+    public UseEffect(whenExpires: Date): boolean {
+        if (this.Unused == 0) {
+            return false;
+        }
+
+        this.Unused -= 1;
+        this.WhenExpires = whenExpires;
+
+        return true;
+    }
+
+    public IsEffectActive(): boolean {
+        const now = new Date();
+
+        if (this.WhenExpires && now < this.WhenExpires) {
+            return true;
+        }
+
+        return false;
+    }
+
+    public static async FetchOneByUserIdAndName(userId: string, name: string): Promise<UserEffect | null> {
+        const repository = AppDataSource.getRepository(UserEffect);
+
+        const single = await repository.findOne({ where: { UserId: userId, Name: name } });
+
+        return single;
+    }
+}
diff --git a/src/database/migrations/app/0.9/1729962056556-createUserEffect.ts b/src/database/migrations/app/0.9/1729962056556-createUserEffect.ts
new file mode 100644
index 0000000..f59b7d4
--- /dev/null
+++ b/src/database/migrations/app/0.9/1729962056556-createUserEffect.ts
@@ -0,0 +1,18 @@
+import { MigrationInterface, QueryRunner } from "typeorm";
+import MigrationHelper from "../../../../helpers/MigrationHelper";
+
+export class CreateUserEffect1729962056556 implements MigrationInterface {
+
+    public async up(queryRunner: QueryRunner): Promise<void> {
+        MigrationHelper.Up("1729962056556-createUserEffect", "0.9", [
+            "01-table-userEffect",
+        ], queryRunner);
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<void> {
+        MigrationHelper.Down("1729962056556-createUserEffect", "0.9", [
+            "01-table-userEffect",
+        ], queryRunner);
+    }
+
+}
diff --git a/src/helpers/EffectHelper.ts b/src/helpers/EffectHelper.ts
new file mode 100644
index 0000000..14c2f43
--- /dev/null
+++ b/src/helpers/EffectHelper.ts
@@ -0,0 +1,49 @@
+import UserEffect from "../database/entities/app/UserEffect";
+
+export default class EffectHelper {
+    public static async AddEffectToUserInventory(userId: string, name: string, quantity: number = 1) {
+        let effect = await UserEffect.FetchOneByUserIdAndName(userId, name);
+
+        if (!effect) {
+            effect = new UserEffect(name, userId, quantity);
+        } else {
+            effect.AddUnused(quantity);
+        }
+
+        await effect.Save(UserEffect, effect);
+    }
+
+    public static async UseEffect(userId: string, name: string, whenExpires: Date): Promise<boolean> {
+        const effect = await UserEffect.FetchOneByUserIdAndName(userId, name);
+        const now = new Date();
+
+        if (!effect || effect.Unused == 0) {
+            return false;
+        }
+
+        if (effect.WhenExpires && now < effect.WhenExpires) {
+            return false;
+        }
+
+        effect.UseEffect(whenExpires);
+
+        await effect.Save(UserEffect, effect);
+
+        return true;
+    }
+
+    public static async HasEffect(userId: string, name: string): Promise<boolean> {
+        const effect = await UserEffect.FetchOneByUserIdAndName(userId, name);
+        const now = new Date();
+
+        if (!effect || !effect.WhenExpires) {
+            return false;
+        }
+
+        if (now > effect.WhenExpires) {
+            return false;
+        }
+
+        return true;
+    }
+}
diff --git a/tests/database/entities/app/UserEffect.test.ts b/tests/database/entities/app/UserEffect.test.ts
new file mode 100644
index 0000000..66992ec
--- /dev/null
+++ b/tests/database/entities/app/UserEffect.test.ts
@@ -0,0 +1,103 @@
+import UserEffect from "../../../../src/database/entities/app/UserEffect";
+
+let userEffect: UserEffect;
+const now = new Date();
+
+beforeEach(() => {
+    userEffect = new UserEffect("name", "userId", 1);
+});
+
+describe("AddUnused", () => {
+    beforeEach(() => {
+        userEffect.AddUnused(1);
+    });
+
+    test("EXPECT unused to be the amount more", () => {
+        expect(userEffect.Unused).toBe(2);
+    });
+});
+
+describe("UseEffect", () => {
+    describe("GIVEN Unused is 0", () => {
+        let result: boolean;
+
+        beforeEach(() => {
+            userEffect.Unused = 0;
+
+            result = userEffect.UseEffect(now);
+        });
+
+        test("EXPECT false returned", () => {
+            expect(result).toBe(false);
+        });
+
+        test("EXPECT details not to be changed", () => {
+            expect(userEffect.Unused).toBe(0);
+            expect(userEffect.WhenExpires).toBeUndefined();
+        });
+    });
+
+    describe("GIVEN Unused is greater than 0", () => {
+        let result: boolean;
+
+        beforeEach(() => {
+            result = userEffect.UseEffect(now);
+        });
+
+        test("EXPECT true returned", () => {
+            expect(result).toBe(true);
+        });
+
+        test("EXPECT Unused to be subtracted by 1", () => {
+            expect(userEffect.Unused).toBe(0);
+        });
+
+        test("EXPECT WhenExpires to be set", () => {
+            expect(userEffect.WhenExpires).toBe(now);
+        });
+    });
+});
+
+describe("IsEffectActive", () => {
+    describe("GIVEN WhenExpires is null", () => {
+        let result: boolean;
+
+        beforeEach(() => {
+            result = userEffect.IsEffectActive();
+        });
+
+        test("EXPECT false returned", () => {
+            expect(result).toBe(false);
+        });
+    });
+
+    describe("GIVEN WhenExpires is defined", () => {
+        describe("AND WhenExpires is in the past", () => {
+            let result: boolean;
+
+            beforeEach(() => {
+                userEffect.WhenExpires = new Date(now.getTime() - 100);
+
+                result = userEffect.IsEffectActive();
+            });
+
+            test("EXPECT false returned", () => {
+                expect(result).toBe(false);
+            });
+        });
+
+        describe("AND WhenExpires is in the future", () => {
+            let result: boolean;
+
+            beforeEach(() => {
+                userEffect.WhenExpires = new Date(now.getTime() + 100);
+
+                result = userEffect.IsEffectActive();
+            });
+
+            test("EXPECT true returned", () => {
+                expect(result).toBe(true);
+            });
+        });
+    });
+});
diff --git a/tests/helpers/EffectHelper.test.ts b/tests/helpers/EffectHelper.test.ts
new file mode 100644
index 0000000..343f06c
--- /dev/null
+++ b/tests/helpers/EffectHelper.test.ts
@@ -0,0 +1,281 @@
+import UserEffect from "../../src/database/entities/app/UserEffect";
+import EffectHelper from "../../src/helpers/EffectHelper";
+
+describe("AddEffectToUserInventory", () => {
+    describe("GIVEN effect is in database", () => {
+        const effectMock = {
+            AddUnused: jest.fn(),
+            Save: jest.fn(),
+        };
+
+        beforeAll(async () => {
+            UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(effectMock);
+
+            await EffectHelper.AddEffectToUserInventory("userId", "name", 1);
+        });
+
+        test("EXPECT database to be fetched", () => {
+            expect(UserEffect.FetchOneByUserIdAndName).toHaveBeenCalledTimes(1);
+            expect(UserEffect.FetchOneByUserIdAndName).toHaveBeenCalledWith("userId", "name");
+        });
+
+        test("EXPECT effect to be updated", () => {
+            expect(effectMock.AddUnused).toHaveBeenCalledTimes(1);
+            expect(effectMock.AddUnused).toHaveBeenCalledWith(1);
+        });
+
+        test("EXPECT effect to be saved", () => {
+            expect(effectMock.Save).toHaveBeenCalledTimes(1);
+            expect(effectMock.Save).toHaveBeenCalledWith(UserEffect, effectMock);
+        });
+    });
+
+    describe("GIVEN effect is not in database", () => {
+        beforeAll(async () => {
+            UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(null);
+            UserEffect.prototype.Save = jest.fn();
+
+            await EffectHelper.AddEffectToUserInventory("userId", "name", 1);
+        });
+
+        test("EXPECT effect to be saved", () => {
+            expect(UserEffect.prototype.Save).toHaveBeenCalledTimes(1);
+            expect(UserEffect.prototype.Save).toHaveBeenCalledWith(UserEffect, expect.any(UserEffect));
+        });
+    });
+});
+
+describe("UseEffect", () => {
+    describe("GIVEN effect is in database", () => {
+        describe("GIVEN now is before effect.WhenExpires", () => {
+            let result: boolean | undefined;
+
+            // nowMock < whenExpires
+            const nowMock = new Date(2024, 11, 3, 13, 30);
+            const whenExpires = new Date(2024, 11, 3, 14, 0);
+
+            const userEffect = {
+                Unused: 1,
+                WhenExpires: whenExpires,
+            };
+
+            beforeAll(async () => {
+                jest.setSystemTime(nowMock);
+
+                UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(userEffect);
+
+                result = await EffectHelper.UseEffect("userId", "name", new Date());
+            });
+
+            test("EXPECT false returned", () => {
+                expect(result).toBe(false);
+            });
+        });
+
+        describe("GIVEN currently used effect is inactive", () => {
+            let result: boolean | undefined;
+
+            // nowMock > whenExpires
+            const nowMock = new Date(2024, 11, 3, 13, 30);
+            const whenExpires = new Date(2024, 11, 3, 13, 0);
+            const whenExpiresNew = new Date(2024, 11, 3, 15, 0);
+
+            const userEffect = {
+                Unused: 1,
+                WhenExpires: whenExpires,
+                UseEffect: jest.fn(),
+                Save: jest.fn(),
+            };
+
+            beforeAll(async () => {
+                jest.setSystemTime(nowMock);
+
+                UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(userEffect);
+
+                result = await EffectHelper.UseEffect("userId", "name", whenExpiresNew);
+            });
+
+            test("EXPECT UseEffect to be called", () => {
+                expect(userEffect.UseEffect).toHaveReturnedTimes(1);
+                expect(userEffect.UseEffect).toHaveBeenCalledWith(whenExpiresNew);
+            });
+
+            test("EXPECT effect to be saved", () => {
+                expect(userEffect.Save).toHaveBeenCalledTimes(1);
+                expect(userEffect.Save).toHaveBeenCalledWith(UserEffect, userEffect);
+            });
+
+            test("EXPECT true returned", () => {
+                expect(result).toBe(true);
+            });
+        });
+
+        describe("GIVEN effect.WhenExpires is null", () => {
+            let result: boolean | undefined;
+
+            // nowMock > whenExpires
+            const nowMock = new Date(2024, 11, 3, 13, 30);
+            const whenExpiresNew = new Date(2024, 11, 3, 15, 0);
+
+            const userEffect = {
+                Unused: 1,
+                WhenExpires: null,
+                UseEffect: jest.fn(),
+                Save: jest.fn(),
+            };
+
+            beforeAll(async () => {
+                jest.setSystemTime(nowMock);
+
+                UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(userEffect);
+
+                result = await EffectHelper.UseEffect("userId", "name", whenExpiresNew);
+            });
+
+            test("EXPECT UseEffect to be called", () => {
+                expect(userEffect.UseEffect).toHaveBeenCalledTimes(1);
+                expect(userEffect.UseEffect).toHaveBeenCalledWith(whenExpiresNew);
+            });
+
+            test("EXPECT effect to be saved", () => {
+                expect(userEffect.Save).toHaveBeenCalledTimes(1);
+                expect(userEffect.Save).toHaveBeenCalledWith(UserEffect, userEffect);
+            });
+
+            test("EXPECT true returned", () => {
+                expect(result).toBe(true);
+            });
+        });
+    });
+
+    describe("GIVEN effect is not in database", () => {
+        let result: boolean | undefined;
+
+        // nowMock > whenExpires
+        const nowMock = new Date(2024, 11, 3, 13, 30);
+        const whenExpiresNew = new Date(2024, 11, 3, 15, 0);
+
+        beforeAll(async () => {
+            jest.setSystemTime(nowMock);
+
+            UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(null);
+
+            result = await EffectHelper.UseEffect("userId", "name", whenExpiresNew);
+        });
+
+        test("EXPECT false returned", () => {
+            expect(result).toBe(false);
+        });
+    });
+
+    describe("GIVEN effect.Unused is 0", () => {
+        let result: boolean | undefined;
+
+        // nowMock > whenExpires
+        const nowMock = new Date(2024, 11, 3, 13, 30);
+        const whenExpiresNew = new Date(2024, 11, 3, 15, 0);
+
+        const userEffect = {
+            Unused: 0,
+            WhenExpires: null,
+            UseEffect: jest.fn(),
+            Save: jest.fn(),
+        };
+
+        beforeAll(async () => {
+            jest.setSystemTime(nowMock);
+
+            UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(userEffect);
+
+            result = await EffectHelper.UseEffect("userId", "name", whenExpiresNew);
+        });
+
+        test("EXPECT false returned", () => {
+            expect(result).toBe(false);
+        });
+    });
+});
+
+describe("HasEffect", () => {
+    describe("GIVEN effect is in database", () => {
+        describe("GIVEN effect.WhenExpires is defined", () => {
+            describe("GIVEN now is before effect.WhenExpires", () => {
+                let result: boolean | undefined;
+
+                const nowMock = new Date(2024, 11, 3, 13, 30);
+                const whenExpires = new Date(2024, 11, 3, 15, 0);
+
+                const userEffect = {
+                    WhenExpires: whenExpires,
+                };
+
+                beforeAll(async () => {
+                    jest.setSystemTime(nowMock);
+
+                    UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(userEffect);
+
+                    result = await EffectHelper.HasEffect("userId", "name");
+                });
+
+                test("EXPECT true returned", () => {
+                    expect(result).toBe(true);
+                });
+            });
+
+            describe("GIVEN now is after effect.WhenExpires", () => {
+                let result: boolean | undefined;
+
+                const nowMock = new Date(2024, 11, 3, 16, 30);
+                const whenExpires = new Date(2024, 11, 3, 15, 0);
+
+                const userEffect = {
+                    WhenExpires: whenExpires,
+                };
+
+                beforeAll(async () => {
+                    jest.setSystemTime(nowMock);
+
+                    UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(userEffect);
+
+                    result = await EffectHelper.HasEffect("userId", "name");
+                });
+
+                test("EXPECT false returned", () => {
+                    expect(result).toBe(false);
+                });
+            });
+        });
+
+        describe("GIVEN effect.WhenExpires is undefined", () => {
+            let result: boolean | undefined;
+
+            const userEffect = {
+                WhenExpires: undefined,
+            };
+
+            beforeAll(async () => {
+                UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(userEffect);
+
+                result = await EffectHelper.HasEffect("userId", "name");
+            });
+
+            test("EXPECT false returned", () => {
+                expect(result).toBe(false);
+            });
+        });
+    });
+
+    describe("GIVEN effect is not in database", () => {
+        let result: boolean | undefined;
+
+        beforeAll(async () => {
+            UserEffect.FetchOneByUserIdAndName = jest.fn().mockResolvedValue(null);
+
+            result = await EffectHelper.HasEffect("userId", "name");
+        });
+
+        test("EXPECT false returned", () => {
+            expect(result).toBe(false);
+        });
+    });
+});
diff --git a/tests/registry.test.ts b/tests/registry.test.ts
deleted file mode 100644
index 71d80db..0000000
--- a/tests/registry.test.ts
+++ /dev/null
@@ -1,66 +0,0 @@
-import {CoreClient} from "../src/client/client";
-import Registry from "../src/registry";
-import fs from "fs";
-import path from "path";
-
-describe("RegisterCommands", () => {
-    test("EXPECT every command in the commands folder to be registered", () => {
-        const registeredCommands: string[] = [];
-
-        CoreClient.RegisterCommand = jest.fn().mockImplementation((name: string) => {
-            registeredCommands.push(name);
-        });
-
-        Registry.RegisterCommands();
-
-        const commandFiles = getFilesInDirectory(path.join(process.cwd(), "src", "commands"))
-            .filter(x => x.endsWith(".ts"));
-
-        for (const file of commandFiles) {
-            expect(registeredCommands).toContain(file.split("/").pop()!.split(".")[0]);
-        }
-
-        expect(commandFiles.length).toBe(registeredCommands.length);
-    });
-});
-
-describe("RegisterButtonEvents", () => {
-    test("EXEPCT every button event in the button events folder to be registered", () => {
-        const registeredButtonEvents: string[] = [];
-
-        CoreClient.RegisterButtonEvent = jest.fn().mockImplementation((name: string) => {
-            registeredButtonEvents.push(name);
-        });
-
-        Registry.RegisterButtonEvents();
-
-        const eventFiles = getFilesInDirectory(path.join(process.cwd(), "src", "buttonEvents"))
-            .filter(x => x.endsWith(".ts"));
-
-        for (const file of eventFiles) {
-            expect(registeredButtonEvents).toContain(file.split("/").pop()!.split(".")[0].toLowerCase());
-        }
-
-        expect(eventFiles.length).toBe(registeredButtonEvents.length);
-    });
-});
-
-function getFilesInDirectory(dir: string): string[] {
-    let results: string[] = [];
-    const list = fs.readdirSync(dir);
-
-    list.forEach(file => {
-        file = path.join(dir, file);
-        const stat = fs.statSync(file);
-
-        if (stat && stat.isDirectory()) {
-            /* recurse into a subdirectory */
-            results = results.concat(getFilesInDirectory(file));
-        } else {
-            /* is a file */
-            results.push(file);
-        }
-    });
-
-    return results;
-}