mittoo asked: Could polymorphing be changed to red? As I see it, Chaos Warp is very well received, and has that 'feels very red' feel about it. Since you said that, say, replacing the target with a permanent of the same type would have made Chaos Warp less of a pie shift, could red get this effect of 'I don't care what enchantment you have on the battlefield as long as it's NOT THAT ONE'.
An interesting suggestion. Shapeshifting is pretty core blue so this would have to be an addition to red rather than a move. Hmm, interesting. Let me think about it.