Now without thrallherdness:
Changeling wizard 7/Chameleon 9/SCM 4
well, you still need leadership to get a warforged that can become the leader frisbee. Or spend 59k+base item cost on an intelligent magic item with the purpose of leading your firsbee swarm, with ice storm as a dedicated ability. but Warforged is a lot easier, and it can be an artificer too.
Here I thought you were going to haunt shift the spell disk of a spellweaver.
You know, the one that's completely invincible, and deals area damage on umd attempts.
blame it on lack of research.