And, a DMM Persistameleon will get to Persist a full list of Divine buffs, and then use Arcane spells during combat.

Cleric1 with Destroy Undead, and the DLCS Sun domain gets two pools of turning, and a dip for Dread Necro to get a third is not out of the question. Throw in the Undeath Domain for quite a few turn attempts. Since these dips happen before chameleon, it doesn't screw up your casting progression at all.