When he gets staked, he gets to have a nap in his coffin, turning into an artifact that pops out 1/1 vampire tokens (not sure how they all fit in that thing) for three turns, then transforming back into his creature form
The real difference, of course, is the prison engine of Winter Orb and Relic Barrier / Icy Manipulator
I love this in a few places
I also recently had a cool game in Legacy where my opponent had a Sanctum of Prelate on one and a Thalia, Guardian of Thraben in play, while I had a Dress Down and Swords to Plowshares in hand with five lands in play including a fetchland
(Whenever a creature with myriad attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control Exile the tokens at end of combat.)