The face commander, Brimaz, Blight of Oreskos is fantastic, giving you an Incubator token whenever you cast either a Phyrexian or artifact spell
Combine it with "OP04-083 Sabo" to prevent it from being K.O.'d by effects and put your opponent against the ropes
The Chaos effect only gets a point off for the fact that some other planes chaos effects are a little lackluster, but its exactly the kind of craziness Im looking for out of Planechase
Worse, Werewolves would get into a fight and would then die at the end of the turn when they changed back into Humans and suddenly had a lower toughness
For example, if you attacked with one of your three face-down creatures last turn, it should be clear to everyone which one that was
where it may be cast with Retrace again