How can you create a combo with Surrak and Goreclaw, Woodfall Primus, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Surrak and Goreclaw, Woodfall Primus, Altar of Dementia

Color identity: G
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Woodfall Primus.
  2. When Woodfall Primus dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. When Woodfall Primus enters the battlefield, it and Surrak and Goreclaw triggers.
  4. Resolve the Surrak and Goreclaw trigger, putting a +1/+1 counter on Woodfall Primus and giving it haste until end of turn.
  5. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Woodfall Primus's power.
  6. Holding priority, repeat from step 1.[END OF COMBO STEPS]

Result:
  - Destroy any number of noncreature permanents
  - Infinite death triggers
  - Infinite enters the battlefield
  - 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
  - Woodfall Primus does not have a -1/-1 counter on it.
[END OF COMBO PREREQUISITES]
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