Lumra, Bellow of the Woods + Walk the Aeons + Deadeye Navigator
Lumra, Bellow of the Woods
Walk the Aeons
Deadeye Navigator
Near-infinite turnsLock
How it works
Cast Walk the Aeons for its buyback cost by paying 4 and sacrificing three Islands, causing you to take an extra turn after this one and return Walk the Aeons to your hand.
Activate Lumra by paying 1, blinking it.
When Lumra enters, it and Deadeye Navigator's soulbond ability trigger.
Resolve the Lumra trigger, causing you to mill four cards and then return all land cards from your graveyard to the battlefield tapped.
Resolve the Deadeye Navigator trigger, repairing it and Lumra.