Color Identity: G, U, R

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. You have a land card in hand.
  2. Skyshroud Ranger does not have summoning sickness.

Steps

  1. Activate Skyshroud Ranger by tapping it, putting a land from your hand onto the battlefield.
  2. The land enters the battlefield, triggering Nissa and Retreat to Coralhelm twice.
  3. Resolve both Nissa triggers, adding ({R} magic symbol)  ({G} magic symbol)  .
  4. Resolve the first Retreat to Coralhelm trigger, causing you to either tap or untap a creature, or scry 1.
  5. Resolve the second Retreat to Coralhelm trigger, untapping Skyshroud Ranger.
  6. Activate Mina and Denn by paying ({R} magic symbol)  ({G} magic symbol)   and returning the land from the battlefield to your hand, giving target creature trample until end of turn.
  7. Repeat.

Results

  1. Infinite landfall triggers.
  2. Infinite mana creatures you control can produce.
  3. Infinite scry 1.
  4. Infinite untap of creatures you control.

Metadata

  1. In 45 decks according to EDHREC.
footer