A long time ago i thought it was an FTP boost. Then I could have sworn when overwhelm came up in a thread some time back that you guys said it was an Atk boost. In another thread today:
Overwhelm isn't an attack boost, it's a direct multiplier on the final damage. Akin to, say, MAB for nukes.
WTF is it?
Also, how is the 2% WS damage on the MKD helm calculated? The same as overwhelm? (and if its the same....see above. Hows overwhelm done xD)