Alela, Artful Provocateur + Cloudstone Curio + Memnite + Phyrexian Walker

Alela, Artful Provocateur

Cloudstone Curio

Memnite

Phyrexian Walker

How it works

1. Cast Memnite by paying 0.
2. Alela triggers, creating a 1/1 Faerie creature token.
3. The Faerie enters the battlefield, triggering Cloudstone Curio, returning Phyrexian Walker from the battlefield to your hand.
4. Cast Phyrexian Walker by paying 0.
5. Alela triggers, creating a 1/1 Faerie creature token.
6. The Faerie enters the battlefield, triggering Cloudstone Curio, returning Memnite from the battlefield to your hand.
7. Repeat.