I don't know how to make this deck any better besides the land, I can't seem to get a balanced Mana base because it's Esper zombies (Black,blue,white). I'd like to make the deck a lot faster like average cmc maybe 2. I apologise that all the cards aren't linked, I forgot how to do that.
TOTAL: 60 card
Creatures:
4 Wayward Servant
4 Carrion Feeder
2 Death Baron
4 Diregraf Colossus
2 Ghoulcaller's Chant
2 Zombie Master
2 Relentless Dead
4 Gravecrawler
1 The Scarab God
1 God-Eternal Oketra
Instants
4 Tragic Slip
4 Counterspell
Enchantments
2 Grave Pact
1 Rooftop Storm
2 Endless Ranks of the Dead
TOTAL: 60 card
Creatures:
4 Wayward Servant
4 Carrion Feeder
2 Death Baron
4 Diregraf Colossus
2 Ghoulcaller's Chant
2 Zombie Master
2 Relentless Dead
4 Gravecrawler
1 The Scarab God
1 God-Eternal Oketra
Instants
4 Tragic Slip
4 Counterspell
Enchantments
2 Grave Pact
1 Rooftop Storm
2 Endless Ranks of the Dead
Land
6 Swamp
1 Dimir Aqueduct
4 Choked Estuary
1 Isolated Chapel
1 Godless Shrine
2 Watery Grave
1 Plains
2 Urborg, Tomb of Yawgmoth
1 Cabal Coffers
3 Evolving Wilds
Sorcery
1 Bubbling Muck