Haha , that death scene doest look exactly like my experiments this morning. That frenzied whirlwind thing is pretty annoying in combination with the wisps.
That guy alone is doable, those wisps in combination with ugly combos are what makes it complicated.
Btw confusion blast might have saved you. Also turning off eoo, doesnt cost mana. Not wanting to critize, looking for ideas myself.
I believe that place is doable with right temp and enough practice and patience.But yes, night terrors look like a mongbat compared to that fight.