yu-gi-oh dark world structure deck Yu-Gi-Oh: Deck: Playmat – Card Monster Games Gates of the Underworld and its return is now nigh Build And Upgrade Yu-Gi-Oh's New

Deckbuilding is split into a main deck and a separate magic stone deck (think of it as your mana base), which reduces mana screw and keeps things flowing

reveals itself in the hand and then forces the opponent to discard a random card from the hand

Cyberse Beacon X TRAP If you took damage by battle or an opponent's card effect this turn: Add 1 Level 4 or lower Cyberse monster from your Deck to your hand

Same caveat applies that this is probably much better if the formats slow, which makes it a more appealing Sealed card

The entire list is cards that care about you casting spells along with spells that only cost one mana, so you can cast a ton of them in just one turn