Dualcaster Mage + Reset + Riptide Laboratory

Mana needed: {1}{U}{U}{R}{R}

UR identity

Commander legal

The 3 combo pieces

What must be in place

Other lands that can produce {3}{U}{R}{R} on the battlefield.

How to execute it

  1. During an opponent turn, after their upkeep, cast Reset for {U}{U}.
  2. In response, cast Dualcaster Mage at instant speed for {1}{R}{R}.
  3. Resolve Dualcaster Mage, and target Reset with his triggered ETB ability to copy Reset.
  4. Resolve the Reset copy untapping your lands including Riptide Laboratory.
  5. In response to the original Reset still on the stack, activate Riptide Laboratory's activated ability for {1}{U} and tap targeting Dualcaster Mage.
  6. Resolve Riptide Laboratory's activated ability returning Dualcaster Mage to your hand.
  7. Tap all lands other than Riptide Laboratory.
  8. Repeat.

What the combo produces