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

Color identity: UR
Mana cost: {4}{U}{U}{R}{R}
Steps:
  1. Cast Baral's Expertise by paying {3}{U}{U}.
  2. Holding priority, cast Dualcaster Mage by paying {1}{R}{R}.
  3. Dualcaster Mage enters the battlefield, creating a copy of Baral's Expertise targeting Dualcaster Mage.
  4. Resolve the copy of Baral's Expertise, returning Dualcaster Mage from the battlefield to your hand, and casting Dualcaster Mage from your hand without paying its mana cost.
  5. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite storm count
  - Return any number of artifacts and/or creatures to their owners' hands[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be in your hand
[END OF COMBO PREREQUISITES]
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