Urza, Lord High Artificer, Deadeye Navigator, The Ooze, and Arcbound Crusher

Prerequisites

• Urza, Lord High Artificer on the battlefield
• Deadeye Navigator on the battlefield
• The Ooze on the battlefield
• Arcbound Crusher on the battlefield
• available

Steps

1. Activate Arcbound Crusher by paying , blinking it
2. Arcbound Crusher leaves and reenters the battlefield, causing it to enter with +1/+1 counters due to its modular ability, and triggering The Ooze and Deadeye Navigator's soulbond ability
3. Resolve Deadeye Navigator's trigger, repairing it and Arcbound Crusher Resolve The Ooze's trigger, creating a Mutagen token for each +1/+1 counter that was on Arcbound Crusher when it left the battlefield
4. When the Mutagens enter, Arcbound Crsuher triggers that many times, putting a +1/+1 counter on it for each trigger
5. Activate Urza's first ability twice by tapping Arcbound Crusher and a Mutagen, adding
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Cast all spells in your library
• Exile your library
• Infinite +1/+1 counters on creatures you control
• Infinite Mutagen tokens
• Infinite blinking
• Infinite blue mana
• Infinite creature tokens