You clearly have not played other tanks. Warriors have to dedicate one full skill chain every 20 seconds( a skill chain taking 7.5 of those seconds) to keep their debuff up 'all the time'. It costs them dps, and means that any mistake, run in/out etc can cause it to fall off. You want a dummy proof power that also enhances your dps by basically being a mercy stroke you can use every 15 seconds...

HAHAHA

Honestly, all you DPS that came to Dark Knight really have no clue how broken you want this class to be.