I feel like a 6 cost blue enchantment that read "monocolred blue creature spells cast 0" would be unfoavorful but not overpowered.
The Eldrazi one could have its text put on an Eldrazi creature.
Making all mono-blue creatures free is a recipe for insanity, because there’s a lot of mono-blue creatures that are really strong
You can cheat big creatures in before dropping a 6 cost enchantment
How does that make it any less strong? It just makes cheating more things in easier.
So the game plan is to be 2 turns behind renamiation? When does this become strong?