This is easily the most fun deck you'll ever play. Well, one of them at least. And it's quite competitive as it truly ruins your opponents plans. It's a hard one to play however, as it's all about knowing when's the right time to steal and when's the right time to play. Most matches I lost were when I prioritize stealing cards over summoning blockers.
Out side of this though. The deck runs like a machine. I have Fizz as the champion because of his ability to go elusive which helps with blocking. He also becomes a target that allows me to negate opponent spells. All of this culminates with his level up, where chum in the waters comes in clutch.