Cavern Harpy + Kentaro, the Smiling Cat + Leyline of Transformation + Urza's Incubator

WUB identity

Commander legal

The 4 combo pieces

• Cavern Harpy
• Kentaro, the Smiling Cat
• Leyline of Transformation
• Urza's Incubator

How to execute it

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

What the combo produces

• Infinite creature LTB
• Infinite ETB
• Infinite storm count