Warrior with Ninja- Slashing Debuff

[Steady]

So, if your "Main Tanking", you should NOT be applying your Slashing Debuff as a WAR. it's NOT worth it in your rotations. If you're "Off Tank" on a single boss, then you should ALWAYS be applying both of your Debuffs. When you're MT'ing, tell your Ninja to not be a bitch and apply the Debuff whenever it comes down. The slashing debuff can buff 3 whole classes, PLD, WAR, and NIN, thats a nice boost across all three classes, which adds up to a nice chunk.

ER what.... doing more damage is always worth it. If your main tanking, you have constant threat generation... and you should have more than enough to increase your own damage, i.e. Maim and Storms. It's damage left on the table otherwise.

The only time Ninja should need to worry about a slashing debuff when War is sharing the same mob is when there are more than one. Like Adds on levi or something.