Extravagant Replication + Eternal Witness + Temporal Manipulation

3-card combo · GU

Verdict

Yes — this 3-card loop locks the table under infinite turns as long as the mana holds.

Cards required: 3
Cheapest stack total: $1.87
Color identity: GU
Popularity: 27 decks
Format: Commander

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Extravagant Replication triggers at the start of each upkeep, minting a token copy of Eternal Witness that immediately returns Temporal Manipulation from the graveyard to hand. Casting Temporal Manipulation each turn costs 3UU, so the engine runs on Simic mana acceleration — Selvala, Heart of the Wilds, Kinnan, Bonder Prodigy, or a dense ramp suite.

Recipe

How it works

Prerequisites

You have enough mana to cast Temporal Manipulation each turn.

Steps

Cast Temporal Manipulation 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 Eternal Witness.
When the Eternal Witness token enters the battlefield, it triggers, returning Temporal Manipulation from your graveyard to your hand.
Repeat.

Result

Infinite turns; Lock

Variations

Cheaper, tighter, alternate lines

Time Warp and Time Stretch both slot in as Temporal Manipulation's replacements at the same or higher cost — the Extravagant Replication trigger doesn't care which extra-turn spell it's recurring. The combo needs a kill condition beyond the lock; pair it with a win-while-looping piece like Thassa's Oracle or a lethal combat swing, because infinite turns alone only win if the board state allows it.