Progenitor Mimic + Temporal Manipulation + Eternal Witness

3-card combo · GU

Verdict

Yes — this 3-card loop chains infinite turns as long as the mana is there to recast Temporal Manipulation each upkeep.

Cards required

Cheapest stack total

$2.62

Color identity

Popularity

80 decks

Format

Commander

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Progenitor Mimic copies Eternal Witness and triggers at each upkeep to create a new Witness token; that token's enters-the-battlefield trigger returns Temporal Manipulation from the graveyard to hand, ready to cast on the extra turn it just produced. The loop runs through Simic's strongest tools — Seedborn Muse accelerates the mana requirement, and any clone effect or haste enabler speeds up assembly. The table sees infinite turns without a single combat step unless the pilot wants it.

How it works

Prerequisites

Enough mana available to cast the extra turn spell each turn. Progenitor Mimic is a copy of Eternal Witness.

Steps

Cast Temporal Manipulation by paying its mana cost, taking an extra turn after this one.
At the beginning of your next upkeep, Progenitor Mimic triggers, creating a token copy of Eternal Witness.
When the token Eternal Witness enters the battlefield, it triggers itself, returning Temporal Manipulation from your graveyard to your hand.
Repeat.

Result

Infinite turns; Lock

Cheaper, tighter, alternate lines

Time Warp and Walk the Aeons are direct substitutes for Temporal Manipulation if that specific extra-turn spell is removed. Strionic Resonator can copy the Progenitor Mimic trigger as a tighter alternative in lists that want redundancy without running multiple five-mana sorceries — though that adds a fourth piece to an already mana-hungry engine.

Progenitor Mimic + Temporal Manipulation + Eternal Witness

How it works

Cheaper, tighter, alternate lines

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