Whenever a Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control
The Burning Sigil of Tzeentch provides random buffs and debuffs to allies and enemies respectively, with it's 4th edition rules allowing it to increase speed of friendlies and reducing speed of enemies, buffing and debuffing attacks, and even dealing damage, all determined by random dice rolls
This card, illustrated by Teeziro, shows Umbreon looking down upon a group of Pokemon - you can see the silhouettes of Pinsir, Grimmsnarl, and Flareon in the shadows
I could easily write another article that explains how Nest Ball is the best card in the set or how Revavroom might be a situationally better Bibarel BRS, but I have a different idea
But even if Misty is a useless card every other turn , the simple fact that it can gain energy for the Water Pokmon of your choice makes it much stronger than other, more limited Supporters
8 Crypt Rats Common Board Wipe Crypt Rats is one of the very few board wipes that are available at the common rarity, making it widely played in Pauper decks that want something like that in their deck (primarily Golgari Gardens)