Dour Port-Mage + Temporal Manipulation + Eternal Witness

3-card combo · GU

Verdict

Yes — this 3-card loop chains infinite extra turns as long as the mana holds up each cycle.

Cards required

Cheapest stack total

$3.84

Color identity

Popularity

121 decks

Format

Commander

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Temporal Manipulation takes an extra turn; Eternal Witness returns it from the graveyard on ETB; then Dour Port-Mage bounces Eternal Witness back to hand for 1U on the extra turn, drawing a card in the process. The loop demands enough mana to cast both Temporal Manipulation and Eternal Witness every iteration, so it runs cleanest in Simic ramp shells that generate surplus mana — Kinnan, Bonder Prodigy or Kruphix, God of Horizons being the natural homes.

How it works

Prerequisites

available plus enough mana to cast Temporal Manipulation and Eternal Witness each turn.

Steps

Cast Temporal Manipulation by paying its mana cost, causing you to take an extra turn after this one.
Cast Eternal Witness by paying its mana cost.
When Eternal Witness enters the battlefield, it triggers, returning Temporal Manipulation from your graveyard to your hand.
Move to your next turn.
Activate Dour Port-Mage by paying and tapping it, returning Eternal Witness from the battlefield to your hand.
Dour Port-Mage triggers, causing you to draw a card.
Repeat.

Result

Infinite turns; Lock

Cheaper, tighter, alternate lines

Archaeomancer or Mnemonic Wall can replace Eternal Witness if green access is thin, though neither recurs anything else in the deck the way Witness does. Time Warp and Time Walk are the tightest substitutes for Temporal Manipulation at the same or lower cost — the extra-turn spell is the easiest piece to swap, the Dour Port-Mage bounce trigger is the hardest to replicate.

Dour Port-Mage + Temporal Manipulation + Eternal Witness

How it works

Cheaper, tighter, alternate lines

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