the front side of Obeka, Splitter of Seconds
the back of a classic MtG card
the front side of Aggravated Assault
the back of a classic MtG card
the front side of Replicating Ring
the back of a classic MtG card

Color Identity: U, B, R

Initial Card State

  1.  All permanents on the battlefield (Obeka without summoning sickness).

Notable Prerequisites

  1. Obeka has power 8 or greater and cannot be blocked by an opponent.

Steps

  1. Deal combat damage using Obeka. Obeka triggers, causing you to get at least eight upkeep phases after this phase.
  2. Move to the first upkeep step. At the beginning of that upkeep, Replicating Ring triggers, putting a night counter on it. Then, if it has eight or more night counters, remove all of them and create eight Replicating Ring tokens.
  3. Repeat step 2 during each remaining upkeep step.
  4. Activate five Replicating Rings by tapping them, adding ({3} magic symbol)  ({R} magic symbol)  ({R} magic symbol)  .
  5. Activate Aggravated Assault by paying ({3} magic symbol)  ({R} magic symbol)  ({R} magic symbol)  , causing you to untap all creatures you control and to get an additional combat and main phase after this one.
  6. Repeat each turn.

Results

  1. Infinite colored mana.
  2. Infinite combat damage.
  3. Infinite combat phases.
  4. Infinite mana creatures you control can produce.
  5. Infinite untap of creatures you control.
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