About [Buff Duration]

1) Epic adventure still gives 10% damage. Half the time...
2) Also affects your hyper buff.
3) Also less time casting decent buffs which all classes can do.
4) Also less time casting buffs which all classes have.

I think ignoring cooldown is better than buff duration though...for cannoneers.

i think ignoring CD might be better for dark knights too, since it affects all of the above and may cancel the CD on dark synthesis.

epic adventure on the other hand... that does look like a nice buff, the 60 attack of dark thirst for another 15 seconds doesn't seem as good though, maybe once the uncap comes. and that's only with the maximum amount of bufftime from aswan (50%) i'm using 50% anyways because normally you'd get 30-40% if you tried plus a mech card.