Ivy, Gleeful Spellthief, Snap, Eternal Witness, Simic Growth Chamber, and Gift of Paradise

Prerequisites

• Ivy, Gleeful Spellthief on the battlefield
• Snap in hand
• Eternal Witness on the battlefield
• Simic Growth Chamber on the battlefield
• Gift of Paradise on the battlefield

Steps

1. Activate Simic Growth Chamber and the land with Gift of Paradise attached by tapping them, adding
2. Cast Snap by paying , targeting Eternal Witness
3. Ivy triggers, copying Snap, targeting Ivy
4. Resolve the copy of Snap, returning Ivy from the battlefield to your hand and untapping Simic Growth Chamber and the land with Gift of Paradise attached
5. Activate Simic Growth Chamber and the land with Gift of Paradise attached by tapping them, adding
6. Resolve Snap, returning Eternal Witness from the battlefield to your hand and untapping Simic Growth Chamber and the land with Gift of Paradise attached
7. Cast Ivy by paying
8. Cast Eternal Witness by paying
9. Eternal Witness enters the battlefield, returning Snap from your graveyard to your hand
10. Repeat

Results

• Infinite colored mana
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite storm count