Brinelin, the Moon Kraken + Displacer Kitten + Sol Ring + Mana Crypt

Brinelin, the Moon Kraken

Displacer Kitten

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 Brinelin.
4. When Brinelin 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 Brinelin.
8. When Brinelin enters the battlefield, it triggers, returning Mana Crypt from the battlefield to your hand.
9. Repeat.