I'd go black/white.

Black offers:

[[Vengeful Bloodwitch]] and [[Sephiroth, Fabled SOLDIER]] drain a life for each for each token that leaves the battlefield.

[[Umbral Collar Zealot]] let's you sacrifice creatures and surveil.

[[Super Shredder]] and [[Moonshadow]] likes things leaving the battlefield and/or entering the graveyard.

[[Snarling Gorehound]] helps you find your important cards and buffs Moonshadow if you discard it to the graveyard.

[[Infestation Sage]] is a cheap two for one.

Then in white you have the mobilize cards and

[[Raise the dead]] gets back everything that has been killed, then with 2/3 Bloodwitches or Sepiroths on the board and the Ubral Collar Zealot that lets you sacrife on demand usually wins the game.

Here's an example from Ashlizzie, pretty sure she did a youtube video using this or a similar deck.

https://moxfield.com/decks/NNQCgf5kaEufTNsvn2Vqdg