Both Clue and Blood tokens are predefined artifact tokens that have to be sacrificed in order to activate them, and draw you a card
Shining Mewtwo is poignant as its generic grey silver isnt quite the same alien shade as it was in the Gen 2 sprite, I dunno, it was also a mistake it and others palette changed for the worse after the debut shine generation (Hounds/Tyranitar/Mewtwo/Lugia)
Cards like Mind Twist can win games
Cataclysm Cataclysm requires you to control a card capable of winning the game, such as Blightsteel Colossus
If you are able to attack a battle (with Sieges, every player who is not the protector can do so, though this may differ with other battle subtypes), you can attack with your creatures , or use direct-damage spells that allow you to either target a battle specifically, or merely say any target