Quote Originally Posted by Duelle View Post
The context of what I'm talking about is stuff that affects everyone. NIN pretty much has the only debuff in the game that increases everyone's damage. That's akin to Icy Talons (+Haste rating to everyone in the raid so long as the DK kept it up), 4.0 Blessing of Might (increases everyone's main stat by X%), or 3.0 Sanctified Retribution (directly increased damage taken from all sources by the mob).
all three of your example are WoW...
Ninja upgrades slashing damage only, meaning WAR/PLD/NIN so if your DPS is all Ninjas then sure, your DPS is going to jump more than having 1 or 2 mages in a party with a Bard. The Bard's ballad also lasts longer than 10s so the DPS boost from a Bard could be more than a Ninja. Ninja doesn't up magic, peircing, or blunt dmange. Ninja is really just Bard with close range attacking and no support for healers mp.
Bard-tp boost, mp boost, magic dmg boost
Ninja-single person tp boost, slashing dmg boost