How can you create a combo with Tatyova, Steward of Tides, Yedora, Grave Gardener, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Tatyova, Steward of Tides, Yedora, Grave Gardener, Altar of Dementia

Color identity: GU
Mana cost: 
Steps:
  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.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite green mana
  - Infinite landfall triggers
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control an additional nontoken creature.
  - You control at least six lands.
[END OF COMBO PREREQUISITES]
assistant