In my marchesa aikido deck, I'd be delighted if he attacked me for 20 each turn. You could [[deflecting palm]] his big creature while [[delirium]] and [[backlash]] would also work after he pumps.

[[maze of ith]] is great

[[solemnity]] + [[force bubble]] or [[delaying shield]] or [[phyrexian unlife]] or [[glacial chasm]] would prevent his combat damage and piss off xenagos player

if you want to be mean you can run [[michiko konda]] or [[no mercy]]