Thornbite Staff + Ulamog's Dreadsire + Yahenni, Undying Partisan

B identity

Commander legal

The 3 combo pieces

What must be in place

Thornbite Staff attached to Ulamog's Dreadsire.
Ulamog's Dreadsire does not have summoning sickness.

How to execute it

  1. Activate Ulamog's Dreadsire by tapping it, creating a 10/10 Eldrazi creature tokens.
  2. Activate Yahenni by sacrificing the Eldrazi token.
  3. When the Eldrazi token dies, Ulamog's Dreadsire triggers, untapping Ulamog's Dreadsire.
  4. Resolve the Yahenni ability.
  5. Repeat.

What the combo produces