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

Color identity: G
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing a nontoken land creature.
  2. When the land creature dies, Yedora triggers, returning the card to the battlefield face down as a Forest land.
  3. When the Forest enters the battlefield, Embodiment of Insight triggers, causing the Forest to become a 3/3 Elemental creature with haste in addition to its other types.
  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 Elemental by tapping it, adding {G}.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - 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 a nontoken land creature.
[END OF COMBO PREREQUISITES]
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