Aluren + Cavern Harpy

BGU identity

Commander legal

The 2 combo pieces

• Aluren
• Cavern Harpy

How to execute it

1. Cast Cavern Harpy without paying its mana cost.
2. Cavern Harpy enters the battlefield, triggering to return itself to your hand.
3. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite ETB
• Infinite storm count