Quote Originally Posted by Renathras View Post
MNK and NIN, right? NIN's attack speed buff makes it faster as well.
NIN's is only 15%, and it has no damage buff, so it would still fall short of physical ranged under flat-bonus-potency-per-GCD buffs. MNK gives 20% atop a 10% buff, slightly edging out healers and physical ranged while still falling short of BLM if the bonus damage is granted as a part of the actions themselves instead of as a separate attack (wherein BLM's 23% bonus from Enochian would stack with its +80% Fire Damage under AF3 in order to get 121.4% more value out of the buff that is labeled on the tin -- utterly imbalanced).

If the bonus were to affect GCDs only, was dealt separately (so no Astral Fire benefit on BLM) but still inherited the effects of traits (Maim and Mend, Job Actions Bonus, Enochian) and buffs, then MCH with sufficient Heat would be best, then Bard under Paeon, then MNK, then BLM, then everyone else well behind.

If the bonus were to GCDs only, was dealt separately, and was not affected by traits (only affected by damage buffs), then it'd be MCH (w/ Heat) > MNK (+20% Haste, +10% Damage) > DRG w/ Lance Charge and Dragon Sight (+30% Damage) > SAM (+13% Haste, +13% Damage) > Bard w/ Paeon and Raging (+16% Haste, +10% Damage) > NIN with TA (+15% Haste, +10% Damage) > PLD under FoF (+25% damage) > GNB under NM / DRG with just LC or just DS (+20% Damage) > BRD w/ Paeon (+16% Haste) > NIN / BLM with Ley Lines (+15% Haste) > DRG / RPR / DRK / WAR (+10% Damage) > etc., etc.

But yeah, long story short -- using flat potency bonuses would be absurdly imbalanced. +% Damage is literally already the most balanced buff possible.