diff --git a/SDG-Backend-Barracuda/Models/CardListModel.cs b/SDG-Backend-Barracuda/Models/CardListModel.cs
new file mode 100644
index 0000000..9cf3d38
--- /dev/null
+++ b/SDG-Backend-Barracuda/Models/CardListModel.cs
@@ -0,0 +1,177 @@
+using Dapper;
+using Npgsql;
+
+namespace SDG_Backend_Barracuda.Models;
+
+public record CardList
+{
+    public int Id { get; init; }
+    public IEnumerable<Card>? Cards { get; init; }
+    public IEnumerable<CardList>? SubLists { get; init; }
+
+    public CardList() { }
+
+    public CardList(int id, IEnumerable<Card>? cards = null, IEnumerable<CardList>? subLists = null)
+    {
+        Id = id;
+        Cards = cards;
+        SubLists = subLists;
+    }
+}
+
+public record CardListInformation(IEnumerable<int>? CardIds = null, IEnumerable<int>? SubListIds = null);
+
+public interface ICardListModel : IDatabaseModel<CardList, CardListInformation>
+{}
+
+public class CardListModel(NpgsqlDataSource dataSource) : ICardListModel, IEndpointRouteHandler
+{
+    public static void MapEndpoints(IEndpointRouteBuilder router)
+    {
+        var listEndpoint = router.MapGroup("/cardlist");
+
+        // Create
+        listEndpoint.MapPost("/", async (CardListInformation input, ICardListModel model) =>
+        {
+            var newList = await model.Create(input);
+            return Results.Created($"/cardlist/{newList.Id}", newList);
+        });
+
+        // Get all
+        listEndpoint.MapGet("/", async (ICardListModel model) =>
+            Results.Ok(await model.GetAll()));
+
+        // Get one
+        listEndpoint.MapGet("/{id}", async (int id, ICardListModel model) =>
+            await model.GetById(id) is { } l ? Results.Ok(l) : Results.NotFound());
+
+        // Update
+        listEndpoint.MapPut("/{id}", async (int id, CardListInformation input, ICardListModel model) =>
+            await model.Update(id, input) is { } l ? Results.Ok(l) : Results.NotFound());
+
+        // Delete
+        listEndpoint.MapDelete("/{id}", async (int id, ICardListModel model) =>
+            await model.Delete(id) ? Results.NoContent() : Results.NotFound());
+    }
+
+    public async Task<IEnumerable<CardList>> GetAll()
+    {
+        await using var connection = await dataSource.OpenConnectionAsync();
+        var sql = """SELECT * FROM "CardList";""";
+        var cardListIds = await connection.QueryAsync<CardList>(sql);
+        
+        var result = new List<CardList>();
+        foreach (var cardListId in cardListIds)
+        {
+            result.Add(await GetById(cardListId.Id) ?? cardListId);
+        }
+        return result;
+    }
+
+    public async Task<CardList?> GetById(int id)
+    {
+        // Check if it exists
+        await using var connection = await dataSource.OpenConnectionAsync();
+        var listSql = """SELECT * FROM "CardList" WHERE "Id" = @Id;""";
+        var cardListId = await connection.QueryFirstOrDefaultAsync<CardList>(listSql, new { Id = id });
+        if (cardListId == null) return null;
+
+        // Get all associated cards
+        var cardsSql = """
+            SELECT c."Id", c."Value" 
+            FROM "Card" c
+            JOIN "CardListCard" clc ON c."Id" = clc."CardId"
+            WHERE clc."CardListId" = @Id;
+            """;
+        var cards = await connection.QueryAsync<Card>(cardsSql, new { Id = id });
+
+        // Get all child CardLists
+        var subListsSql = """
+            SELECT sl."Id"
+            FROM "CardList" sl
+            JOIN "CardListSubList" clsl ON sl."Id" = clsl."SubCardListId"
+            WHERE clsl."CardListId" = @Id;
+            """;
+        var subLists = await connection.QueryAsync<CardList>(subListsSql, new { Id = id });
+        
+        return cardListId with { Cards = cards, SubLists = subLists };
+    }
+
+    public async Task<CardList> CreateEmpty()
+    {
+        await using var connection = await dataSource.OpenConnectionAsync();
+        var sql = """INSERT INTO "CardList" DEFAULT VALUES RETURNING "Id";""";
+        return await connection.QuerySingleAsync<CardList>(sql);
+    }
+
+    public async Task<CardList> Create(CardListInformation input)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync();
+        var newList = await CreateEmpty();
+
+        if (input.CardIds != null)
+        {
+            foreach (var cardId in input.CardIds)
+            {
+                await connection.ExecuteAsync(
+                    """INSERT INTO "CardListCard" ("CardListId", "CardId") VALUES (@ListId, @CardId)""",
+                    new { ListId = newList.Id, CardId = cardId });
+            }
+        }
+
+        if (input.SubListIds != null)
+        {
+            foreach (var subListId in input.SubListIds)
+            {
+                await connection.ExecuteAsync(
+                    """INSERT INTO "CardListSubList" ("CardListId", "SubCardListId") VALUES (@ListId, @SubListId)""",
+                    new { ListId = newList.Id, SubListId = subListId });
+            }
+        }
+
+        return (await GetById(newList.Id))!;
+    }
+
+    public async Task<CardList?> Update(int id, CardListInformation input)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync();
+        
+        // Verify list exists
+        var exists = await connection.ExecuteScalarAsync<bool>("""SELECT EXISTS(SELECT 1 FROM "CardList" WHERE "Id" = @Id)""", new { Id = id });
+        if (!exists) return null;
+
+        // Sync Cards - Maybe think through a better way to do this that isn't "wipe it, then start over"
+        await connection.ExecuteAsync("""DELETE FROM "CardListCard" WHERE "CardListId" = @Id""", new { Id = id });
+        if (input.CardIds != null)
+        {
+            foreach (var cardId in input.CardIds)
+            {
+                await connection.ExecuteAsync(
+                    """INSERT INTO "CardListCard" ("CardListId", "CardId") VALUES (@Id, @CardId)""",
+                    new { Id = id, CardId = cardId });
+            }
+        }
+
+        // Sync SubLists - Maybe think through a better way to do this that isn't "wipe it, then start over"
+        await connection.ExecuteAsync("""DELETE FROM "CardListSubList" WHERE "CardListId" = @Id""", new { Id = id });
+        if (input.SubListIds != null)
+        {
+            foreach (var subListId in input.SubListIds)
+            {
+                await connection.ExecuteAsync(
+                    """INSERT INTO "CardListSubList" ("CardListId", "SubCardListId") VALUES (@Id, @SubListId)""",
+                    new { Id = id, SubListId = subListId });
+            }
+        }
+
+        return await GetById(id);
+    }
+
+    public async Task<bool> Delete(int id)
+    {
+        await using var connection = await dataSource.OpenConnectionAsync();
+        var sql = """DELETE FROM "CardList" WHERE "Id" = @Id;""";
+        var rowsAffected = await connection.ExecuteAsync(sql, new { Id = id });
+        return rowsAffected > 0;
+    }
+}
diff --git a/SDG-Backend-Barracuda/Models/CardModel.cs b/SDG-Backend-Barracuda/Models/CardModel.cs
index c0f8797..0e5ec19 100644
--- a/SDG-Backend-Barracuda/Models/CardModel.cs
+++ b/SDG-Backend-Barracuda/Models/CardModel.cs
@@ -60,7 +60,7 @@ public class CardModel(NpgsqlDataSource dataSource) : ICardModel, IEndpointRoute
     {
         await using var connection = await dataSource.OpenConnectionAsync();
         var sql = """UPDATE "Card" SET "Value" = @Value WHERE "Id" = @Id RETURNING "Id", "Value";""";
-        return await connection.QueryFirstOrDefaultAsync<Card>(sql, new { Id = id, Value = input.Value });
+        return await connection.QueryFirstOrDefaultAsync<Card>(sql, new { Id = id, input.Value });
     }
 
     public async Task<bool> Delete(int id)
diff --git a/SDG-Backend-Barracuda/Program.cs b/SDG-Backend-Barracuda/Program.cs
index 3ee5b1e..14d9539 100644
--- a/SDG-Backend-Barracuda/Program.cs
+++ b/SDG-Backend-Barracuda/Program.cs
@@ -14,6 +14,7 @@ builder.Services.AddNpgsqlDataSource(connectionString!);
 
 // Register Data Tables
 builder.Services.AddScoped<ICardModel, CardModel>();
+builder.Services.AddScoped<ICardListModel, CardListModel>();
 
 var app = builder.Build();
 
@@ -26,6 +27,19 @@ using (var scope = app.Services.CreateScope())
         CREATE TABLE IF NOT EXISTS ""Card"" (
             ""Id"" SERIAL PRIMARY KEY,
             ""Value"" TEXT NOT NULL
+        );
+        CREATE TABLE IF NOT EXISTS ""CardList"" (
+            ""Id"" SERIAL PRIMARY KEY
+        );
+        CREATE TABLE IF NOT EXISTS ""CardListCard"" (
+            ""CardListId"" INTEGER NOT NULL REFERENCES ""CardList""(""Id"") ON DELETE CASCADE,
+            ""CardId"" INTEGER NOT NULL REFERENCES ""Card""(""Id"") ON DELETE CASCADE,
+            PRIMARY KEY (""CardListId"", ""CardId"")
+        );
+        CREATE TABLE IF NOT EXISTS ""CardListSubList"" (
+            ""CardListId"" INTEGER NOT NULL REFERENCES ""CardList""(""Id"") ON DELETE CASCADE,
+            ""SubCardListId"" INTEGER NOT NULL REFERENCES ""CardList""(""Id"") ON DELETE CASCADE,
+            PRIMARY KEY (""CardListId"", ""SubCardListId"")
         );");
 }
 
@@ -38,5 +52,6 @@ if (app.Environment.IsDevelopment())
 app.UseHttpsRedirection();
 
 CardModel.MapEndpoints(app);
+CardListModel.MapEndpoints(app);
 
 app.Run();
\ No newline at end of file
diff --git a/SDG-Backend-Barracuda/SDG-Backend-Barracuda.http b/SDG-Backend-Barracuda/SDG-Backend-Barracuda.http
index 9e103ee..8d24470 100644
--- a/SDG-Backend-Barracuda/SDG-Backend-Barracuda.http
+++ b/SDG-Backend-Barracuda/SDG-Backend-Barracuda.http
@@ -26,3 +26,37 @@ Content-Type: application/json
 
 ### Delete a card
 DELETE {{SDG_Backend_Barracuda_HostAddress}}/card/1
+
+
+### Create a new empty card list
+POST {{SDG_Backend_Barracuda_HostAddress}}/cardlist/
+Content-Type: application/json
+
+### Create a new card list with cards and sub-lists
+POST {{SDG_Backend_Barracuda_HostAddress}}/cardlist
+Content-Type: application/json
+
+{
+  "cardIds": [3, 2],
+  "subListIds": [4]
+}
+
+### Get all card lists
+GET {{SDG_Backend_Barracuda_HostAddress}}/cardlist
+Accept: application/json
+
+### Get a card list by ID (includes cards and sub-lists)
+GET {{SDG_Backend_Barracuda_HostAddress}}/cardlist/1
+Accept: application/json
+
+### Update a card list
+PUT {{SDG_Backend_Barracuda_HostAddress}}/cardlist/1
+Content-Type: application/json
+
+{
+  "cardIds": [4],
+  "subListIds": []
+}
+
+### Delete a card list
+DELETE {{SDG_Backend_Barracuda_HostAddress}}/cardlist/1