Dualcaster Mage + Twinflame

Dualcaster Mage
Twinflame

Requires
Both cards in hand. At least one creature on the battlefield. 2rrr available.
Steps
  1. Cast Twinflame by paying 1r
  2. Holding priority, cast Dualcaster Mage by paying 1rr
  3. Dualcaster Mage enters the battlefield, copying Twinflame
  4. Resolve the Twinflame copy, creating a token copy of Dualcaster Mage
  5. Repeat from step 3
Results
Infinite creature tokens with haste. Infinite ETB. Infinite magecraft triggers.