Since it doesn't work at all on pvp defense I think that's still ok. Might trivialize elite boss battles, if you can get it up and running, but if an EB gets a power off one or more of your teammates is probably dead anyway.
From his blue passive power, I think he will go very good with KP and IF
IF 5 purple create black--->create passive counting tile
KP 6 black destroy counting tile-->create passive counting tile
so If you have 10 or more purple aps, your KP will kill enemy in one turn with multiple KP fingers