Color Identity: U, R, W

Prerequisites

  1.  All permanents on the battlefield (
    Umbral Mantle
    Umbral Mantle     attached to
    Cayth, Famed Mechanist
    Cayth    ).
  2. You control at least one creature token.
  3. You control at least four creatures that share a creature type with the creature token.
  4. Cayth, Famed Mechanist
    Cayth     does not have summoning sickness.
  5. ({2} magic symbol)   available.

Steps

  1. Activate
    Cayth, Famed Mechanist
    Cayth     by paying ({2} magic symbol)   and tapping it, creating a token copy of a creature token you control.
  2. When the creature token enters the battlefield,
    Mana Echoes
    Mana Echoes     triggers, adding ({C} magic symbol)   for each creature you control that shares a creature type with it.
  3. Activate
    Cayth, Famed Mechanist
    Cayth     by paying ({3} magic symbol)   and untapping it, giving it +2/+2 until end of turn.
  4. Repeat.

Notes

  1. You may begin the combo with less creatures that share a type with the token, but you will need additional mana to do so until you begin to break even from
    Mana Echoes
    Mana Echoes    ' trigger. Once you have infinite mana, you may instead use
    Cayth, Famed Mechanist
    Cayth     to get infinite proliferate.

Results

  1. Infinite ETB.
  2. Infinite colorless mana.
  3. Infinite proliferate.
  4. Infinite copies of creature tokens you control.
  5. Infinitely large
    Cayth, Famed Mechanist
    Cayth     until end of turn.

Metadata

  1. In 0 decks according to EDHREC.
footer