Displacer Kitten, Eternal Witness, Lotus Petal, and Snap

Prerequisites

• Displacer Kitten on the battlefield
• Eternal Witness on the battlefield
• Lotus Petal in the graveyard
• Snap in hand
• You control up to two lands that can tap to produce at least

Steps

1. Activate up to two lands by tapping them, adding at least
2. Cast Snap by paying
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
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

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite magecraft triggers
• Near-infinite colored mana
• Return all creatures you don't control to their owner's hand