put out as many zombies as you can, then buff them with Diregraf Captain and Havengul Runebinder.

as you reach a decent amount of zombies on the board and graveyard drop Unbreathing Horde to get a really strong creature.

in the end, when your enemy just cleared your board casually play Zombie Apocalypse and boom, game over.

if you need a certain zomboy you can use Corpse Connoisseur + Cemetery Recruitment

have fun!