Color Identity: R, G, W

Prerequisites

  1.  All permanents on the battlefield.
  2. Marath, Will of the Wild
    Marath
    has at least two +1/+1 counters on it.
  3. ({1} magic symbol)   available.

Steps

  1. Activate
    Marath, Will of the Wild
    Marath
    by paying ({1} magic symbol)   and removing a +1/+1 counter from it, creating a 1/1 Elemental creture token.
  2. The Elemental enters the battlefield, triggering
    Mana Echoes
    Mana Echoes
    and
    Cathars' Crusade
    Cathars' Crusade
    .
  3. Resolve the
    Mana Echoes
    Mana Echoes
    trigger, adding ({C} magic symbol)   for each Elemental you control.
  4. Resolve the
    Cathars' Crusade
    Cathars' Crusade
    trigger, putting a +1/+1 counter on each creature you control.
  5. Repeat.

Results

  1. Infinite +1/+1 counters on each other creature you control.
  2. Infinite colorless mana.
  3. Infinite creature tokens.
  4. Infinite ETB.

Metadata

  1. In 334 decks according to EDHREC.
footer