Urza, Lord High Artificer + Scaretiller + Vesuva + Gods' Eye, Gate to the Reikai + Intruder Alarm

Prerequisites

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Steps

1. 1Activate Urza by tapping Scaretiller, adding .
2. 2Scaretiller triggers, returning Vesuva from your graveyard to the battlefield as a copy of Gods' Eye.
3. 3Put Vesuva into your graveyard due to the legend rule.
4. 4Vesuva triggers, creating a 1/1 Spirit creature token.
5. 5When the Spirit enters the battlefield, Intruder Alarm triggers, untapping all creatures.
6. 6Repeat.

Effects

• Infinite creature ETB
• Infinite creature tokens
• Infinite landfall triggers
• Infinite mana creatures you control can produce
• Infinite untap of creatures