"Non-Physical Interaction (Can harm Heartless), Resistance to Absorption, Death Manipulation (Unaffected by Heartless, which passively kill and absorb things around them), Data Manipulation (Ansem The Wise stated that the "heart" cannot be contained by data, and that the process itself would be incalculable), Existence Erasure (Can take hits from Heartless, which can do this with any attack)"
I disagree with adding anything from the quote that I have made bold which is everything except the Data Manipulation which I'm kind of ambivalent about. Who would know if they always had those abilities from figthing Heartless in the first place? Personally, I'd lean towards them only having it in Kingdom Hearts.