diff --git a/datapacks/allthemons-x-mega-showdown-legacy.pw.toml b/datapacks/allthemons-x-mega-showdown-legacy.pw.toml
new file mode 100644
index 0000000..21ee30b
--- /dev/null
+++ b/datapacks/allthemons-x-mega-showdown-legacy.pw.toml
@@ -0,0 +1,13 @@
+name = "AllTheMons x Mega Showdown"
+filename = "ATM x MSD [v3.5.0].zip"
+side = "both"
+
+[download]
+url = "https://cdn.modrinth.com/data/odZZdRCE/versions/D7z5VLh4/ATM%20x%20MSD%20%5Bv3.5.0%5D.zip"
+hash-format = "sha512"
+hash = "edfa186e5991dc3147591fda44e0075f629c4a1dbdece1100493c720ba873549e30eaf795c14758013aff5d91f20f539fb08791bc4f548f3a13262857851162f"
+
+[update]
+[update.modrinth]
+mod-id = "odZZdRCE"
+version = "D7z5VLh4"
diff --git a/datapacks/allthemons.pw.toml b/datapacks/allthemons.pw.toml
deleted file mode 100644
index 003adbc..0000000
--- a/datapacks/allthemons.pw.toml
+++ /dev/null
@@ -1,13 +0,0 @@
-name = "AllTheMons [Cobblemon]"
-filename = "AllTheMons [R3.4].zip"
-side = "both"
-
-[download]
-url = "https://cdn.modrinth.com/data/JV5dvqVX/versions/RKwM7Mkr/AllTheMons%20%5BR3.4%5D.zip"
-hash-format = "sha512"
-hash = "0e4931768e8eada05643fd01a2e1b5842e6314322171d1c658556ef69dc5ad83ba74605aaeb6b4d9f04c39db352173f118dc6a8a9325883c162c490fefca65a0"
-
-[update]
-[update.modrinth]
-mod-id = "JV5dvqVX"
-version = "RKwM7Mkr"
diff --git a/index.toml b/index.toml
index 5590581..1df3e91 100644
--- a/index.toml
+++ b/index.toml
@@ -716,6 +716,11 @@ hash = "bcbd948756076e1ae62fdaebc342fd71d7c5ecc3b8c9491225fe6557374add7b"
 file = "config/simplemenu/logo/logo.png"
 hash = "893ed5d871ac45eebd955e287d8ab517a5d96190ac834a6d4a3d52dae914d6bd"
 
+[[files]]
+file = "datapacks/allthemons-x-mega-showdown-legacy.pw.toml"
+hash = "a7552a82a8b8ec3148bccd029b054ecc74b2e4d94adddc08184177e89bb34917"
+metafile = true
+
 [[files]]
 file = "datapacks/allthemons.pw.toml"
 hash = "199cbf9de616844d09c34f5c60e7025a1310a4a921f4ffdb872e0aba935a47f5"
diff --git a/pack.toml b/pack.toml
index 433abec..c02727d 100644
--- a/pack.toml
+++ b/pack.toml
@@ -6,7 +6,7 @@ pack-format = "packwiz:1.1.0"
 [index]
 file = "index.toml"
 hash-format = "sha256"
-hash = "91a7f821d5bc465840bc05b185ea28019062dabeea413b2466b77e02bbfe3d35"
+hash = "1782c25b8d2813e2cf3f7508c217a693459c23f95f8531fe4297b6a1f2b2d634"
 
 [versions]
 minecraft = "1.21.1"