the front side of Guile
the back of a classic MtG card
the front side of Chalice of the Void
the back of a classic MtG card

Color Identity: U

Initial Card State

  1.  Guile and Chalice of the Void on the battlefield.

Notable Prerequisites

  1. You have a spell in hand with mana value equal to the number of charge counters on Chalice of the Void.

Steps

  1. Cast any spell that has a mana value equal to the number of charge counters on Chalice of the Void.
  2. Chalice of the Void triggers, exiling the spell and casting it from exile without paying its mana cost.
  3. Repeat from step 2.

Results

  1. Infinite magecraft triggers.
  2. Infinite storm count.

Metadata

  1. In 60 decks according to EDHREC.
footer