Is there anything that can buff Opportunity Strike (the skill you get on Will if you dodge everything)?
I used Bloodbath and made sure I was Enraged before using it, but checking our log it didn't increase the damage done. Didn't get to test Avatar or other Flat % increase buffs because the boss died on our first try.
I did notice it was hitting for a little over 500k, so maybe it accounts for debuffs on the boss (ie: Sunder, Physical Vulnerability), so maybe Shattering Throw works? Getting a cast off won't be easy though =(