Cavern Harpy + Morophon, the Boundless

WUBRG identity

Commander legal

The 2 combo pieces

• Cavern Harpy
• Morophon, the Boundless

What must be in place

"Harpy" or "Beast" chosen with Morophon.

How to execute it

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

What the combo produces

• Infinite creature LTB
• Infinite ETB
• Infinite storm count