Displacer Kitten + Ancestral Statue + Sol Ring + Mana Crypt

Displacer Kitten

Ancestral Statue

Sol Ring

Mana Crypt

How it works

1. Activate Sol Ring by tapping it, adding CC.
2. Cast Mana Crypt by paying 0.
3. Displacer Kitten triggers, blinking Ancestral Statue.
4. When Ancestral Statue enters the battlefield, it triggers, returning Sol Ring from the battlefield to your hand.
5. Activate Mana Crypt by tapping it, adding CC.
6. Cast Sol Ring by paying 1.
7. Displacer Kitten triggers, blinking Ancestral Statue.
8. When Ancestral Statue enters the battlefield, it triggers, returning Mana Crypt from the battlefield to your hand.
9. Repeat.