How can you create a combo with Dualcaster Mage, Persist, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Dualcaster Mage, Persist, Ashnod's Altar

Color identity: BR
Mana cost: {2}{B}{R}{R}
Steps:
  1. Cast Persist by paying {1}{B}, targeting any nonlegendary creature card in your graveyard.
  2. Holding priority, cast Dualcaster Mage by paying {1}{R}{R}.
  3. Dualcaster Mage enters the battlefield, triggering its ability, targeting Persist.
  4. Activate Ashnod's Altar by sacrificing Dualcaster Mage, adding {C}{C}.
  5. Resolve the Dualcaster Mage trigger, copying Persist, targeting Dualcaster Mage.
  6. Resolve the copy of Persist, returning Dualcaster Mage from your graveyard to the battlefield with a -1/-1 counter on it.
  7. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Dualcaster Mage must be in your hand
  - Persist must be in your hand
  - Ashnod's Altar must be on the battlefield
  - You have at least one nonlegendary creature card in your graveyard.
[END OF COMBO PREREQUISITES]
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