I think the problem with pinning down the powers and limitations of a witch is that the only prominent witch is Jade. And since she is a witch of space and has a connection to the green sun (whos powers are mostly space related) its hard to see where the witch powers start and the sun powers stop.

I mean you could sort of say that of every Class and Aspect, power-wise we’ve only seen a fraction of the potential God Tiers could have, do also remember there are God Tier Rungs and we only know of Jade and Caliborn as the two Characters that at least climbed a few more Rungs before the end of the game.