Chaos is quite good.
Hmm, I'm a bit confused. Chaos is more of an ability for Elves, it's their last resort.
Added 16 minutes later
So, skills.
In my opinion, leadership and initiative boost (cooperation is good), attack, definitely light with area-of-effect spells (Wrath + Wind), education (this is debatable, but it provides knowledge bonuses for buffs and +10% critical hit chance against sworn enemies, which can be significant, especially if luck is good). Summoning? I don't know, maybe only for Phantom, so Wisdom is also an option (although it requires 2 levels, while summoning only gives 1). Luck for an Elf? It's a rip-off, 2.25 with a 0.5 probability instead of 2, and it takes up a whole slot. It's easier to increase initiative and boost luck with artifacts/enhancements, especially since Karlam finds all the resources and artifacts. Dark against undead? That's a good idea, as long as we have a bigger budget. Machines? Okay, maybe, but what would we replace with them? Defense? If you're boosting initiative, why defense? Chaos is nonsense for an Elf. Logistics for Grete? Heh. What else is left? In general, for an Elf, it's all about initiative and critical hit, critical hit, and critical hit again. And then, whatever works