How many of you noticed this in the spell casting demonstration?

[Rydin]

Thunder hit for 761. 5s CD

Thundara hit for 1233. 15s CD

Burst hit for 1973. 15m CD

Based on the description we got for it a while back, Burst is supposed to do more damage based on your HP. His HP was around halfway. Unless there's some ridiculous curve, regardless of whether it does more on full HP or low HP, I still don't feel like it deserves a 15 minute cooldown.

At what point would the best pound for pound damage dealer become OP?

You DOUBLE the damage of BLM's big combo....

even if it had no cooldown at all... how often do you think you could use it and not pull hate?