On-curve, good early for smashing, good later to breaking out of board stalls, and plays well with others
The additional text here is that it costs one mana less to cast for each creature card in your graveyard, and it can be as cheap as one Black mana
Spider-Man is going to be included, of course, but how did you land on the other three characters for this debut
Especially those that use Tezzeret, Master of the Bridge as a win condition
The rest of the deck is fully on theme, as even a good amount of the removal in the deck creates a zombie in one way or another (Enter the God-Eternals, Syphon Flesh, Cruel Revival)
This was before the mirror breaker Viridian Longbow entered with Mirrodin , so there wasn't a good way to break the stalemate