the front side of Prototype Portal
the back of a classic MtG card
the front side of Retreat to Coralhelm
the back of a classic MtG card
the front side of Ensoul Artifact
the back of a classic MtG card
the front side of Ancient Den
the back of a classic MtG card

Color Identity: W, U

Initial Card State

  1.  Ancient Den in exile (exiled by Prototype Portal).
  2.  All other permanents on the battlefield.

Notable Prerequisites

  1. Ensoul Artifact attached to Prototype Portal.
  2. Prototype Portal does not have summoning sickness.

Steps

  1. Activate Prototype Portal by tapping it, creating a token copy of Ancient Den.
  2. When the Ancient Den token enters the battlefield, Retreat to Coralhelm triggers, untapping Prototype Portal.
  3. Repeat.

Results

  1. Infinite Ancient Den tokens.
  2. Infinite landfall triggers.
  3. Infinite white mana.

Metadata

  1. In 5 decks according to EDHREC.
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