Fain, the Broker + Maskwood Nexus + Thornbite Staff + Xathrid Necromancer

B identity

Commander legal

The 4 combo pieces

What must be in place

You control at least one additional creature.
Thornbite Staff attached to Fain.
Fain does not have summoning sickness.

How to execute it

  1. Activate Fain's first ability by tapping it and sacrificing a creature.
  2. The creature dies, triggering Xathrid Necromancer and Fain.
  3. Resolve the Xathrid Necromancer trigger, creating a 2/2 Zombie creature token.
  4. Resolve the Fain trigger, untapping it.
  5. Resolve the Fain ability from step 1, putting two +1/+1 counters on a creature you control.
  6. Repeat.

What the combo produces