Ifrits are for fans of Armageddon and those who like to turn Heroes into a real-time strategy game.

Armageddon doesn't technically deal fire damage, so Ifrits take it full force... or maybe it's a reduced amount, I don't remember exactly, but they definitely take some damage in any case:)

and the turn order with Nightmares will be good.

The turn order is slow in general. Ifrits have a much larger modifier, and Nightmares are even slower:)

Actually, I don't know about others, but for me personally, the problems when playing as Chaos only arise with mana. At the beginning, while there are no Nightmares yet, and you need to break through something, the cost of arrows and lightning spells is quite high. After building Nightmares, you can sometimes hold off in some battles, but it depends on what you're trying to break through:) In general, in my opinion, developing as Chaos is quite simple: fast units, Chaos Knights, Death Tactician, and whoever else you want:) and Nightmares:)