the front side of Crackdown Construct
the back of a classic MtG card
the front side of Cryptolith Rite
the back of a classic MtG card
the front side of Endling
the back of a classic MtG card

Color Identity: B, G

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. Endling does not have summoning sickness.

Steps

  1. Activate Endling by tapping it, adding one black mana.
  2. Activate Endling's first ability by paying one black mana.
  3. Crackdown Construct triggers, giving itself +1/+1 until end of turn.
  4. Resolve the Endling ability, untapping it.
  5. Repeat.

Results

  1. Infinitely large creature until end of turn.
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