Extravagant Replication + Temporal Manipulation + Timeless Witness

Extravagant Replication

Temporal Manipulation

Timeless Witness

How it works

1. Cast Temporal Manipulation by paying its mana cost, causing you to take an extra turn after this one.
2. Move to your next turn.
3. At the beginning of your upkeep, Extravagant Replication triggers, creating a token copy of Timeless Witness.
4. When the Timeless Witness token enters the battlefield, it triggers, returning Temporal Manipulation from your graveyard to your hand.
5. Repeat.

This loop creates an inevitable, game-winning cycle of infinite turns by turning your upkeep into a revolving door of time magic. It all hinges on Extravagant Replication steadily cloning permanents every turn, which specifically targets Timeless Witness as it arrives to continually recur Temporal Manipulation from your graveyard. Because Temporal Manipulation gives you the extra turns you need to keep triggering Extravagant Replication, you can replay the spell every single cycle to lock down the game completely.