Extravagant Replication + Eternal Witness + Time Warp

3-card combo · GU

Verdict

Yes — this 3-card loop generates infinite turns by recycling Time Warp through a free Eternal Witness token every upkeep.

Cards required: 3
Cheapest stack total: $0.38
Color identity: GU
Popularity: 63 decks
Format: Commander

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Extravagant Replication does the heavy lifting: each upkeep it clones Eternal Witness, and the token's enters-the-battlefield trigger immediately rebinds Time Warp to hand. The loop lives in Simic extra-turns shells — Aesi, Tyrant of Gyre Strait or Teferi, Temporal Archmage commanders that already want Time Warp as a standalone and Eternal Witness as recursion glue.

Recipe

How it works

Prerequisites

You have enough mana to cast Time Warp each turn.

Steps

Cast Time Warp 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 Time Warp from your graveyard to your hand.
Repeat.

Result

Infinite turns; Lock

Variations

Cheaper, tighter, alternate lines

Archaeomancer or Salvager of Secrets slot in for Eternal Witness if the budget list needs redundancy, though both lack the flexibility to recur non-instants/sorceries when the combo isn't live. Strionic Resonator can copy the Extravagant Replication trigger on a budget, but it adds a mana tax each loop and relies on the Resonator surviving — the cleaner line keeps the three-card core intact and wins immediately with any game-ending sorcery like Expropriate grabbed off the loop.