You may want to consider Faerie Artisans. I've had good results with her in my Yasova deck, it can give a continuous stream to tokens for sacrifice effects.

Yasova the Bully

What i can suggest to implement into your deck is Conqueror's Flail...it buffs your cmd to steal bigger creatures and gives a bit of protection during your turn !Also Proteus Staff is a 2nd Jalira, Master Polymorphist.

@wylie72 I have to use it and test it. Very interesting card. I really want to see what kind of things can happen with it in this deck. Especially with the sac fodder.

@AntiRivet no not a bully. Who ever plays this deck is the bully.

@Mythos242 solid suggestions. I like the Proteus Staff suggestion and comparing it to Jalira, Master Polymorphist I don't know why I never saw that comparison befor. Gonna have to try that out.