Noble Knights! Brand-new Mythical Beasts! The Extradimensional Terrors of Akira Zaizen from Yu-Gi-Oh! VRAINS! Each Extreme Force Special Edition box for the Yu-Gi-Oh! Trading Card Game contains three Extreme Force booster packs, 1 of 2 Super Rare variants of sought-after tournament level cards, and 1 of 2 Super Rare preview cards from the Spring 2018 booster set.