Goblin Charbelcher
Please ban Goblin Charbelcher. Having 100+ damage dealt to me in a single turn by a card that costs 4 mana is insane. It isn't competitive or fun. I shouldn't have to restrict myself to playing blue decks with counterspells in historic just to avoid being casually executed by a one trick pony.
Maybe Goblin Charbelcher can be reworked for Alchemy if it's truly important enough to the game. My feeling, however, is that the popularity of the card is quite simply the power of abusing it to unsportingly snipe your opponent and collect wins.
I also request the creation of a webpage specifically dedicated to handling ban suggestions. As it stands, hunting through feedback forums is a tedious process that makes me feel as frustrated as having to play against the card in the first place.