Quote Originally Posted by VileIves View Post
When there are enough targets, and if you don't have Convert, you can Triple Cast Fire II - Flare - Flare - Transpose for some free damage. Since you can only triple/quad flare by using items and/or convert. Thing is, Fire II might have low potency, but it doesn't diminish at all so if you can get in more AoEs before you have to transpose back to Ice, you can frontload a little more damage. Also considering squeezing it in before the flares doesn't really cost a thing, since one Umbral Heart won't steal a Flare from you.
For the amount of targets for F2 to be considered using, T4 is racking up TClouds. GCDs spent on F2 in this scenario prevent you from using more flares while letting your downtime be filled with T4TCs.

F2 is only 'worth it' compared to flare when the target list starts exceeding 6 enemies, but in these scenarios, T4 outpaces it due to ramping TCloud procs.