the front side of Death's Presence
the back of a classic MtG card
the front side of Ashnod's Altar
the back of a classic MtG card
the front side of Thopter Squadron
the back of a classic MtG card

Color Identity: G

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. Thopter Squadron has at least two +1/+1 counters on it.

Mana Needed

  1. ({1} magic symbol)   available.

Steps

  1. Activate Thopter Squadron's first ability by paying ({1} magic symbol)   and removing a +1/+1 counter from it, creating a 1/1 Thopter artifact creature token.
  2. Activate Ashnod's Altar by sacrificing the Thopter, adding ({C} magic symbol)  ({C} magic symbol)  .
  3. When the Thopter dies, Death's Presence triggers, putting a +1/+1 counter on Thopter Squadron.
  4. Repeat.

Results

  1. Infinite colorless mana.
  2. Infinite death triggers.
  3. Infinite ETB.
  4. Infinite LTB.
  5. Infinite sacrifice triggers.

Metadata

  1. In 11 decks according to EDHREC.
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