Aluren, Snap, and Lutri, the Spellchaser

Prerequisites

• Aluren on the battlefield
• Snap in hand
• Lutri, the Spellchaser in hand
• available

Steps

1. Cast Snap by paying its mana cost
2. Holding priority, cast Lutri without paying its mana cost due to Aluren
3. When Lutri enters, it triggers, copying Snap
4. Resolve the Snap copy, returning Lutri from the battlefield to your hand
5. Repeat from step 2

Results

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