For the classic mono-black swarm, Marrow-Gnawer (the iconic token doubler) or Karumonix (the budget pick)
The overload instant for seven mana will bounce all opposing non-lands like tokens such as Treasure or 1/1 dorks to planeswalkers and enchantments too
Quick Summary Heres the short version: Magic cards use a multi-layer Corona playing card stock with a colored (usually blue) core, not basic cardboard
Open hundreds of cards, upgrade your deck,and get ready to draw on elemental magic to claim victory
Gix, Yawgmoth Praetor Gix, Yawgmoth Praetor is very good in black disruptive/discard decks filled with cards like tokens, Deep-Cavern Bat, or Preacher of the Schism
You could even build towards Yarok's creature types if you wanted to