Altar of Dementia + Tatyova, Steward of Tides + Yedora, Grave Gardener

GU identity

Commander legal

The 3 combo pieces

What must be in place

You control an additional nontoken creature.
You control at least six lands.

How to execute it

  1. Activate Altar of Dementia by sacrificing a nontoken creature.
  2. The creature dies, triggering Yedora, returning the creature from your graveyard to the battlefield face down as a Forest land.
  3. The face-down Forest enters the battlefield, triggering Tatyova, causing the Forest to become a 3/3 Elemental with haste until end of turn.
  4. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to the sacrificed creature's power.
  5. Activate the Forest by tapping it, adding {G}.
  6. Repeat.

What the combo produces