Displacer Kitten + Eternal Witness + Lotus Petal + Snap

Displacer Kitten

Eternal Witness

Lotus Petal

Snap

How it works

1. Activate up to two lands by tapping them, adding at least 1.
2. Cast Snap by paying 1.
3. Displacer Kitten triggers, blinking Eternal Witness.
4. When Eternal Witness enters the battlefield, it triggers, returning Lotus Petal from your graveyard to your hand.
5. Resolve Snap, returning the creature that can be cast using one colored mana from the battlefield to your hand, and untapping two lands you control.
6. Cast Lotus Petal by paying 0.
7. Displacer Kitten triggers, blinking Eternal Witness.
8. When Eternal Witness enters the battlefield, it triggers, returning Snap from your graveyard to your hand.
9. Activate Lotus Petal by tapping and sacrificing it, adding one mana of any color.
10. Cast the creature from your hand by paying its mana cost.
11. Repeat.
12. You may instead bounce any creature you don't control to its owner's hand instead of bouncing the generic creature, as long as your opponents control creatures, and net one colored mana per loop.