Ive already blown my one affinity joke, so lets get into this
9 Yzma, Conniving Chemist Legendary - $5.86 Drawing cards has never felt better than with Yzma, Conniving Chemist
Maybe the blue/red deck is fine with this because it costs 4 mana, but otherwise I think its too weak
A six mana investment on the front is well worth it, particularly as you can get him in for damage, pitch a spell to Connive, and flip him on the same turn
Enter the Bargain, with twice the cost, only skips your draw step, you draw them immediately to cast them or in response to something, and it's even legal as a four of in Vintage where it used to be on the B&R list
The play pattern here is to get Vivi in play, pitch a huge red spell card to cast a free Blazing Shoal and make Vivi enormous, then use Vivi's ability to generate loads of free mana and cast more giant spells, storm off, or simply swing and deal heaps of damage to your opponent with the now embiggened mage