LOL

, Pocus
actually Caelum has the 'Return of the Raptors' theme, which gives you Harab Seraphs that are skilled at air, death, and earth magic.
I do like the Egg Shell Cult, though, something for Illwinter to consider

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somewhat OT: there has been a discussion earlier about the ice weapons and whether they are too strong vs. ethereal monsters.
Well, there are other things that you can do that will give you a similar advantage.
I am playing Marignon right now with the diabolical faith theme. I choose a Moloch pretender (one bad mother, btw) and gave it fire magic level 9. This results not only in giving my holy units a +4 in attack when blessed, but also they will wield fire weapons. Now watch that horde of flagellants flail out fiery death

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My point is that magic weapons are not restricted to Caelum.