Personally, I think that it is too focused on a very specific goal when the payoff isn't fabulous. You have a lot of tutoring cards, which will end up getting you a Stuffy Doll in play and then try to protect it while you hit it twice for a lot of damage. If there was a single shot that you could expect to take out your opponent with, then this plan would be much more attractive. As it is, each of the crucial cards costs a lot of mana, so it's probably going to be at least a couple turns to actually get anything to happen.
If I were making modifications I would drop the tutoring and Rebuff the Wicked to instead stick in more damage redirection creatures. You can easily add some of:
Mogg Maniac
Boros Reckoner
Spitemare
You could also look at Inferno as another damage source since you would deal 18 damage to your opponent if you have two redirection creatures in play. Another less attractive option is Crater Hellion -- it's a lot less damage, but you do get a 6/6 out of it.
If you drop the tutoring you also have better options for attacking to get in a bit of damage instead of just relying on a 1/1.