Ivy, Gleeful Spellthief, Lotus Field, Simic Growth Chamber, Skullwinder, and Snap

Prerequisites

• Ivy, Gleeful Spellthief on the battlefield
• Lotus Field on the battlefield
• Simic Growth Chamber on the battlefield
• Skullwinder on the battlefield
• Snap in hand

Steps

1. Activate Simic Growth Chamber and Lotus Field by tapping them, adding and three mana of any color
2. Cast Snap by paying , targeting Skullwinder
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 Lotus Field
5. Activate Simic Growth Chamber and Lotus Field by tapping them, adding and three mana of any color
6. Resolve Snap, returning Skullwinder from the battlefield to your hand and untapping Simic Growth Chamber and Lotus Field
7. Cast Ivy by paying
8. Cast Skullwinder by paying
9. When Skullwinder enters the battlefield, it triggers, returning Snap from your graveyard to your hand, and causing an opponent to return any card from their graveyard to their hand
10. Repeat

Results

• Infinite colored mana
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite storm count
• Infinite untap of lands you control
• Target opponent returns all cards in their graveyard to their hand