Or if enough people could say otherwise, they could change the plans up a bit and give Cjn its own spells, and Thm have all the elemental spells.
Ifrit is fire based, Cjn has wind, water, and earth. We have Fire, that goes out the window, lightning, and Ice. So we only have two offensive spells to Ifrit, while Conjurer has his weakness, and two toher spells to throw at him, and Bind AoE Nuke.