New Ancient Magic Spells

[Dawiichan]

Looking at burst, the MP cost is 252 mp with a 15:00 minute cooldown. It did do around 700+ more dmg on a monsters than thundara(Thundara seems to do around 63% of the dmg that burst does on a full hp mob based on the video dmg), however you got to remember that the combo of thundara adds extra dmg. Burst on the other hand gets increased damage depending on how low the health of the target is, so it's full potential wasn't shown there.

I don't think I've ever gotten resisted against ifrit or moogles with dark seal, I would recommend saving Dark seal for ancient magic. I mean all three seem to have different uses. Flare most likely will do massive aoe dmg + the DoT, Burst is a single target finisher and Freeze is a single target dmg spell that reduces enmity, so Dark seal should be up every time you use it since you most likely wont use all 3 consecutively.

However this is all speculation.