the front side of Crackleburr
the back of a classic MtG card
the front side of Cryptolith Rite
the back of a classic MtG card

Color Identity: G, U, R

Initial Card State

  1.  Crackleburr and Cryptolith Rite on the battlefield.

Notable Prerequisites

  1. You control at least two other blue creatures that do not have summoning sickness.
  2. Crackleburr does not have summoning sickness.

Steps

  1. Activate Crackleburr and two other blue creatures you control by tapping them, adding one generic manaone blue or red manaone blue or red mana.
  2. Activate Crackleburr's second ability by paying one blue or red manaone blue or red mana and untapping it and the two blue creatures, targeting any creature.
  3. Repeat.

Results

  1. Infinite colored mana.
  2. Return any number of creatures to their owners' hands.
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