How can you create a combo with Dualcaster Mage, Doppelgang?
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[START OF COMBO]This combo can be formed with Dualcaster Mage, Doppelgang

Color identity: GUR
Mana cost: {4}{R}{R}{G}
Steps:
  1. Cast Doppelgang by paying at least {3}{G}{U}, targeting any permanent(s).
  2. Holding priority, cast Dualcaster Mage by paying {1}{R}{R}.
  3. When Dualcaster Mage enters the battlefield, it triggers, copying Doppelgang, creating a token copy of Dualcaster Mage and any other permanent(s).
  4. When the token Dualcaster Mage enters the battlefield, it triggers, copying Doppelgang, creating a token copy of Dualcaster Mage and any other permanent(s).
  5. Repeat step 4.
  6. If desired, you may pay an additional {3} when casting Doppelgang to get an additional target, which can be used on any permanent on the battlefield to get infinite copies of it.[END OF COMBO STEPS]

Result:
  - Infinite copies of permanents on the battlefield
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite landfall triggers
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite mana lands that enter the battlefield untapped can produce[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be in your hand
  - There is at least one permanent on the battlefield.
[END OF COMBO PREREQUISITES]
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