Extreme Force - Booster Box (1st Edition)Set: Extreme Force Sealed Release Date: 2018 02 02 Extreme Force features a number of powerful cards that Duelists can add to any Deck, as well as brand new strategies and individual cards to bolster old favorites, like Noble Knights. For Duelists who were late to the party incorporating Link Monsters into their Extra Deck, this set has several powerful new Link Monsters to help them catch up, including a LINK 4 monster that gains extra effects