Kentaro, the Smiling Cat + Leyline of Transformation + Shrieking Drake + Urza's Incubator

WU identity

Commander legal

The 4 combo pieces

How to execute it

  1. Cast Shrieking Drake by paying {0}.
  2. When Shrieking Drake enters the battlefield, it triggers, returning itself from the battlefield to your hand.
  3. Repeat.

What the combo produces