Only concerns:
1 is with this build are energy, and spectrosiphon + nourish fixes that splendidly. Just cast spectrosiphon, then nourish, and use mass vitrify/anything else to kill stuff within spectrosiphon, and ur good to go
2 is with survivability, but iirc, mass vitrify gives like 3s of i-frames, so just cast that if u thing ur gonna die. You’ll use it like every 10 seconds anyways.

Enjoy nuking :)