Drowning Mirror Force can only be activated when your opponents Monster declares a direct attack and stops their attack by shuffling all of your opponents attack position Monsters into the deck
White creates tokens, blue scries, red burns opponents, and green pumps creatures, so no matter what you cast, you gain value
Combustible Gearhulk has shown the ability to either draw you three cards or outright kill your opponent, or at least put them in range of being killed very, very quickly
Even later in the game, the difficulty is unforgiving, and with no option to change it, its a travesty
You'll find the Gagaga archetype, Utopia cards, and Spellbook archetype here
Their focus on memes may still stand as an example of everything wrong with modern pop-culture, but credit where credit is due, the Spongebob Squarepants Secret Lair sets dont look like complete s**t