You can check out my other planeswalker deck under my profile, it combines Stuffy Doll and Chandra. It's pretty mean
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I added some blue control cards, Counterspell and Tradewind Rider instead, as the Gatekeeper allows the target to pick which creature he gets to sacrifice. I keep the demonic tutors in there because I run another planeswalker deck, where if you can't pull the planeswakler by the 10-15th turn, it becomes a pain, so having the demonic tutors help take some of the randomness out of the deck.
I like your ideas