If Shadow Kayn could keep moving when casting Q; If Rhast could gain bonus resist from wall walking

By no means do I think Kayn is weak, and I would say he's actually in a pretty good spot as far as balance goes, especially for a new champion, but the gameplay of his two forms feels like it could use some more solidification.

Assassin form Kayn is all about mobility, so it feels off when he dashes and has to stop for a while after casting Q. Rhast meanwhile is meant to have staying power after initiating, and stronger resistances when emerging from a wall could do just that.

Obviously this would entail some other areas being weakened to compensate- maybe W damage from Rhast and dialing back 10% or so AD scaling on Shadow's ult, just some stuff that hopefully wouldn't hurt too much in return for the added utility.

I just think these changes would help the play experience of both forms feel more cohesive.