Uro, Titan of Nature's Wrath + Deadeye Navigator + Simic Growth Chamber + Tiller Engine
Uro, Titan of Nature's Wrath
Deadeye Navigator
Simic Growth Chamber
Tiller Engine
Requires
Uro, Titan of Nature's Wrath must be in hand, or in the command zone.
Deadeye Navigator must be on the battlefield.
Simic Growth Chamber must be in hand.
Tiller Engine must be on the battlefield.
Mana needed: 
plus enough mana to pay for commander tax, if applicable
plus enough mana to pay for commander tax, if applicable
Steps
- Cast Uro either from your hand or from the command zone by paying plus commander tax, if applicable.
- When Uro enters the battlefield, its first and second abilities trigger, as well as Deadeye Navigator's soulbond ability.
- Resolve the Deadeye Navigator trigger, pairing it and Uro.
- Resolve the second Uro trigger, causing you to draw a card, gain 3 life, and put Simic Growth Chamber from your hand onto the battlefield.
- When Simic Growth Chamber enters the battlefield, it and Tiller Engine trigger.
- Resolve the Tiller Engine trigger, untapping Simic Growth Chamber.
- Holding priority, activate Simic Growth Chamber by tapping it, adding .
- Resolve the Simic Growth Chamber trigger, returning it to your hand from the battlefield.
- Activate Uro by paying , blinking it.
- Repeat from step 2.
Results
Infinite card draw. Infinite draw triggers. Near-infinite ETB. Near-infinite landfall triggers. Near-infinite lifegain. Near-infinite lifegain triggers. Near-infinite LTB.
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