@Rhapsodie Hey man, I found something you might want to check out:
Some geosets still present in 'Dissipate'.
His bottom part material layer behaves like crazy by changing color during 'Death'. (Thinking of Blend type errors.)
Start and end frames during 'Spell Slam' are not the same thus causing a glitch.
'Spell' looks weaker in comparison to other animations because his skirt is not moving properly (just does it like a frozen in time piece of cloth, though I respect such Wight-y posture lul).
I'd consider making his portrait animations a bit more live by adding some torso movement.