Snap, and Lutri, the Spellchaser

Prerequisites

• Snap in hand
• Lutri, the Spellchaser in hand
• available

Steps

1. Cast Snap by paying , targeting any creature
2. With the original Snap on the stack, cast Lutri
3. Resolve the Lutri ETB, causing you to create a copy of Snap and change its target to Lutri
4. Resolve the copy of Snap, returning Lutri to your hand and untapping two lands that produce enough to recast it
5. Repeat from step 2

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite magecraft triggers
• Infinite mana lands you control can produce
• Infinite storm count
• Infinite untap of lands you control