If you need blockers, Call provides them
If a creature card in your graveyard is a double-faced card, your graveyard-creature only gains the text box on its front face
It isnt excessively dominated by bombs or 5c piles (though the set does support both), so youre very much trying to draft a cohesive deck
The icing on the cake comes during your upkeep, where you get to Scry X and make your opponents lose X life, where X is the number of Zombies under your control
Llanowar Elves would be a nice mana producing creature, but I may use ramp spells like Rampant Growth that add more lands to the field while filling my graveyard as they were one time use spells
Roalesk, Apex Hybrid In some circumstances you're hoping not to get the death trigger on Roalesk, Apex Hybrid, since it's kind of a massive threat in play