Displacer Kitten + Aether Channeler + Mana Crypt + Jeweled Lotus

Displacer Kitten

Aether Channeler

Mana Crypt

Jeweled Lotus

How it works

1. Cast Mana Crypt by paying 0.
2. Displacer Kitten triggers, blinking Aether Channeler.
3. When Aether Channeler enters the battlefield, it triggers, returning Jeweled Lotus from the battlefield to your hand.
4. Activate Mana Crypt by tapping it, adding CC.
5. Cast Jeweled Lotus by paying 0.
6. Displacer Kitten triggers, blinking Aether Channeler.
7. When Aether Channeler enters the battlefield, it triggers, returning Mana Crypt from the battlefield to your hand.
8. Repeat.