Extravagant Replication + Walk the Aeons + Damage Control Crew
Extravagant Replication
Walk the Aeons
Damage Control Crew
Infinite turnsLock
How it works
Cast Walk the Aeons by paying its mana cost, causing you to take an extra turn after this one.
Move to your next turn.
At the beginning of your upkeep, Extravagant Replication triggers, creating a token copy of Damage Control Crew.
When the Damage Control Crew token enters the battlefield, it triggers, returning Walk the Aeons from your graveyard to your hand.
Repeat.
This clever loop locks down endless time by turning your upkeep into a revolving door of recurring history. You begin by casting Walk the Aeons to claim an extra turn, letting it slip into your graveyard once it resolves. When you reach that bonus turn, Extravagant Replication triggers to mint a fresh token copy of Damage Control Crew. As that Crew enters the battlefield, its Repair ability plucks Walk the Aeons right back out of your graveyard and into your hand, ready to be cast all over again.