Roon of the Hidden Realm + Eternal Witness + Time Warp

3-card combo · GWU

Verdict

Yes — this 3-card loop locks the table into infinite turns as long as Roon stays untapped and alive.

Cards required
3
Cheapest stack total
$38.55
Color identity
GWU
Popularity
178 decks
Format
Commander
Buy required cards on TCGplayer

Each turn cycle, Roon blinks Eternal Witness at end of step, which returns Time Warp to hand for recasting next turn; the loop is self-sustaining once all three pieces are on board. Bant blink shells — Roon of the Hidden Realm as commander is the obvious home, but any Bant list running Brago, King Eternal — run this as a compact extra-turns engine that only needs 3UU per loop to execute.

Recipe

How it works

01

Prerequisites

Roon does not have summoning sickness.

02

Steps

  1. Cast Time Warp by paying {3}{U}{U}, causing you to take an extra turn after this one.
  2. Activate Roon by paying {2} and tapping it, exiling Eternal Witness until the beginning of your end step.
  3. At the beginning of your end step, Roon triggers, returning Eternal Witness from exile to the battlefield.
  4. Eternal Witness enters the battlefield, putting Time Warp into your hand from your graveyard.
  5. Repeat each turn.

03

Result

Infinite turns; Lock

Variations

Cheaper, tighter, alternate lines

Archaeomancer and Salvager of Secrets slot in for Eternal Witness if graveyard hate is a concern, trading the flexibility of a generic recursion body for redundancy. Strip Time Warp for Capture of Jingzhou or Temporal Manipulation if the budget calls for it — functionally identical, same mana cost, same result.

Verified on Commander Spellbook · Combo ID eternal-witness-roon-of-the-hidden-realm-time-warp

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Updated . Data from Commander Spellbook, Scryfall, and EDHREC.