Polymorph, Rapid Hybridization and Pongify should be on here for blue.

my bad, just noticed the non creature nature of this list...

Purity shouldn't be here, right?

Oops, meant Purify...

Changing...

Isn't Eldrazi Conscription against your rule 4 ?

What about Vandalblast, By Force, Shattering Spree ?
Everybody should already know that has nothing for enchantments anyway.

Shape Anew ?

Eldrazi Conscription can be used repeatably to remove any artifact/enchantment.

I guess I could add cards that can destroy multiple artifacts or multiple enchantments without hurting your own. Vandalblast, By Force, Shattering Spree, and more (Fiery Confluence!) are definitely solid cards, so I should find a way to add them.

Shape Anew only hits one artifact though, and it can't hit enchantments.

I think you forgot to include black in your amazing list!

Eilel, black unfortunately has fewer ways of dealing with enchantments than red at the moment.