Idea: Pixies trade out useless creatures you own or dangerous creatures your opponent owns. This can be particularly effective with fallen druids since you will end up putting a creature in the opponent's deck that they may not have the quanta to cast again. Spider cows are also fun. If you get an ability that isn't helpful, just use a pixie to swap it out for something else.
Upgraded version can employ chaos power to buff pixies.
Other mod ideas could include adding in whim, fenghuang, and / or SoSe.