Hmm.... Just came an idea.
Idea:Genuinous
Name: Dissension?
Element: Not sure where would it fit.... Definitely not
and counterproductive in
Cost: 3-7 somewhere
Concept: Your opponent can't stack cards. Already stacked cards remain stacked.
Basically this would be a Malignant cell for Permanents, but your Permanent slots would only be filled if you play too many of them. This would be really good as PC against control rainbows, but also a great defense against EQ/Tsunami.
Would this work as far as coding and theory goes?