Why such a large gap between some heals?

[Karnage720]

I beleive that with Divine Seal + Fairy Buff + Convalescence + Defiance + Mantra + Healing pot you can crit a Cure II for 5400 - 6000 hp which is fun, I can't see a reason for this to used...ever but still fun to push those big numbers out

OP - likely just Tank buffs that you don't notice. Can't think of any other reason for heals to be skewed that much otherwise.

Yea it was due to buffs.