I'm looking to build a list of options that twist his abilities against the opponent. Not just synergy, like "have lots of big creatures for the trample from his first ability," but more devious options. I am not looking for infinite combos, though.
I would prefer cards that can be good on their own, but that isn't necessary.
Some of these can backfire (like Cowardice and Horobi), but throw them out there and let's see what we get.
A friend had suggested that to me, too. I'm not a fan of how it shuts off the B ability for me, but I was considering Mistcaller as an alternative that selectively turns the ability to exile rather than reanimate. I can even use the B ability to bring it back on another turn, plus it can turn off other reanimation decks at will while allowing me to reanimate when I want.