Degeneration
Destruction.
All of your opponents non-new cards are discarded and replaced with cards of lesser rarity.
BB code
Effect
All of your opponents non-new cards are discarded and replaced with cards of lesser rarity.
Note
Another name for this card could be Stagnation to fit with the way it targets non-new cards. I've lowered the cost a bit from 14/14/14 to 10/10/10.