About fire 2?

[PyurBlue]

At 76 you get Umbral Soul, which means you should have 3 umbral hearts built up between packs in dungeons. I use two Fire II's before doing my two flares on the opening.

F2 is too weak to make this worth it, you just lose DPS by diluting your Flare damage. F2 also doesn't have the benefit of having a higher minimum damage than Flare like it did in SB. At level 80 I only use F2 when it's time to go into fire and the cooldown on Triple/Swift is as long as a F2 cast.