Wowzer, the Aspirational is a rare Legendary Snow Creature — Wurm card from Mystery Booster 2 (MB2), collector number 604. Current market price: $0.25, TCGplayer market prices via Scryfall.
Whenever Wowzer, the Aspirational attacks, if you have an {E}, control a Blood, a Clue, a Food, a Map, a Powerstone, and a Treasure, are the monarch, and have the city's blessing and the initiative, you win the game.