Quote Originally Posted by Ehayte View Post
I would assume the safe bet for best AE rot is Doton > Katon > Kassatsu > Katon.
Katon is straight up 180 potency, and Doton has to tick for 18 secs (Doton icon duration goes from 24secs->6secs) to match that. And even then a full 24sec Doton (if the mob stays in there the entire fight) applies 240 potency. That's an extra 60 potency compared to Katon, per mob.

I would say that if mobs are going to die sooner than 18secs, you might as well go with Katon. If they're going to last more than 18secs, Doton might be better if they remain in the circle all the way through.