New card idea: Vigilance
rarity: Uncommon
duration: Lasts for 12 hours
affect: If someone casts a card on you with the "Undercover" ability it will show you who cast it. The casting player will see a message that their card cast was found out by the receiving player's Vigilance.

-Captain D

Very sneaky, I like it.

Great idea, this would definitely help in some cases and would be a great card.