Kaldring, the Rimestaff
Just lost 2 games IN A ROW in my mtga draft due to "Kaldring, the Rimestaff". This Abomination isnt even a legendary Card. Well my Red/Black deck didnt have artifact removal. My Bad. That poor designed card doesnt even have a downside. Lose 2 life etc. Had the upper hand both times but couldnt do anything. This isnt magic. 3 mana: win the game.
So here is my Suggestion: When you design a card, think about its Impact in Limited. What were you thinking? I'm outta here. Have Fun.