Below are some of the most useful ones: The canonical example of a card in this category is Thrumming Stone, which basically lets your copy of Slime Against Humanity mini-cascade into other copies of Slime Against Humanity
If "Guardian Wingman" is in your Graveyard, this card can attack all of your opponent's monster's once each, and when this card attacks, your opponent cannot activate any Spell or Trap Cards until the end of the Damage Step
Its artwork is notable for being different from that seen in the anime, and also for being significantly altered for the international release
Of course, no Pokmon there just yet, but it's a solid option if you're just wanting to build something neat to display
The Eldrazi The Eldrazi, especially Emrakul, the Aeons Torn, carry a certain kind of fear and weight with their name
Kappa Cannoneer came to use from the Kamigawa Neon Dynasty Commander decks, but quickly moved into eternal formats