The Academy and Academy Island are portrayed very much as being a Crapsaccharine World: It's a tropical paradise where duelists can develop the ability to become pros once they graduate, and it's proof that Kaiba succeeded in steadily moving society towards Duel Monsters as a replacement for pointless conflict...but underneath it all is a rigid caste system that he unintentionally created, where Slifers are treated as deadlasts who exist mainly to be beaten down or sneered at by "the elite" Obelisks, and the Ra Dorm is the middle where they're not AS elite but also not immune to mistreating Slifers
Once Per Turn: If your opponent activates a card effect this turn, you can shuffle one "Abyssal" card from your hand into your deck to negate the effect and destroy the card
Instead, your targets are randomly selected from the Pokemon that your opponent has in their Active and Benched Spots
Chronicles was functionally the first Masters set
7 Hieratic Decks Can Quickly Summon Monsters Using Egypt's mythology and hieroglyphs as a focus, the Hieratics have a unique method of summoning that often involves tributing monsters from the hand to summon themselves onto the field
Vessel for the Dragon Cycle synergizes well with the large fraction of Wrym monsters composing the Deck