Hey there, I use Ifrit for end game raid. I stacted with Garuda, but learned Ifrit was the way to go. Particularly the first small Boss in as9 then for as10 and as11. Our group hasn't gotten to as12 yet. I consider the frequency of aoe damage party will take ad well as the casts needed. It is a little more difficult since dots are not extended due to lack of contagion. Much more flexibility with more potent attacks on Boss by Ifrit and his shield. You'll learn how to really keep the dots up while dodging everything like you haven't ever done before lol.