The endgame of this modpack is very boring, the only things you can do is a huge island (@Rivvest ), or some items from mods that have very little things like Botania (Gaia) or Thaumcraft (The very endgame items are not possible to get because the Crimson Rites is unobteniable, the most endgame items you can get are the void ones). I suggest to add avaritia, for a more interesting endgame. There is also another thing we can do to the thaumcraft endgame, make a recipe for the crimson rites.
Mym sadly can't add mods to non-MyM packs. That would mean that players have to use our launcher instead of the Ftb,... one. It would result in less new players. Only the modpack creator can add them. Any suggestions for the pack should be posted on the ftb forums so he can see.
Hmm, that's a shame... But Mym can modify recipes, right? That means, the only option left is the crimson rites recipe...