Unown V

Unown getting a V is brilliant enough, but wow, what a V it is. A complete game-changer, this offers the three-Energy attack, Victory Symbol, that radically changes how you can win the game
In a regular game of Pokémon TCG, you need to win back all six of your Prize Cards to win the whole game. But with Unown V, if you have one Prize Card left on the board, and use Victory Symbol…you win. Like, just for attacking. It’s utterly bonkers, which is perfect for this most mysterious of Pokémon.
Accordingly, Silver Tempest contains a pile of these, with a regular Unown V, then a Full Art version (that’s actually slightly less exciting-looking than the regular), and finally the Alternate Art you can see above. It’s currently changing hands for a monstrous $70, but fortunately the regular version is easily pulled from packs—my son got two of them from his pre-release box! It’s going to be fascinating to see what this card does to tournaments, messing with the very reality of the game.
(There’s a VSTAR, it should be mentioned, but aside from offering a possible 210 damage if you flip three heads, it seems to weaken the card’s potential.)