Grazing Kelpie + Shilgengar, Sire of Famine + Thran Vigil

GWUB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Shilgengar by sacrificing Grazing Kelpie.
  2. When Grazing Kelpie dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. Thran Vigil triggers, putting a +1/+1 counter on Grazing Kelpie.
  4. Resolve the Shilgengar ability.
  5. Repeat.

What the combo produces