When you use Tirakai's Maul to imbue the unique gem Prothotipe's Prismatic Eye, it grants the maul damage conversion of 25% each to fire/cold/lightning/arcane, similar to if you were wearing the Elemental Fury ring. However, if you imbue a different gem to replace the Eye, the maul will gain all the new gem's stats while keeping the damage conversion from the Eye. There may be other bugs related to unique gems, although I didn't see any issues with the Lifebinding Emerald.
Furthermore, each time you imbue a different gem and imbue Prothotipe's again, the damage conversion stat will keep scaling by 25% for each element. So after imbuing and swapping Prothotipe's 4 times, it will have 100% damage conversion to fire/cold/lighting/arcane. This doesn't seem to have any functional impact. The game apparently ignores any additional damage conversion beyond 100%, so if you do imbue Prothotipe's 4 times you will just do 100% lightning damage on hit.
[1.2.5] Tirakai's Maul + Prothotipe's Prismatic Eye
Moderator: Moderator