the front side of Galvanic Key
the back of a classic MtG card
the front side of Rings of Brighthearth
the back of a classic MtG card
the front side of Everflowing Chalice
the back of a classic MtG card

Color Identity: C

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. At least six charge counters on Everflowing Chalice.

Steps

  1. Activate Everflowing Chalince by tapping it, adding at least six generic mana.
  2. Activate Galvanic Key by paying three generic mana and tapping it.
  3. When you activate Galvanic Key, Rings of Brighthearth triggers, causing you to pay two generic mana to copy that ability.
  4. Resolve one copy of the Galvanic Key ability, untapping Everflowing Chalice.
  5. Repeat.

Results

  1. Infinite colorless mana.
  2. Infinite untap of artifacts you control.
  3. Infinite mana artifacts you control can produce.
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