The last collectible card game I played was Overpower in the '90s, the shortest bus of the genre, so I can't tell you much about this modern, new fangled, complicated thingamajig. According to a few resources I dug up on the intarnets, the card works like this:
Team: Teen Titans
Concealed - Optional
Activate exhaust target character with cost less than the number of face-down resources you control.
A peaceful rebel among White Martians, Miss Martian pretended to be a Green Martian to avoid prejudice.
The card is apparently rare, though it can be easily purchased for just a few bucks online. It was lovingly rendered by Ryan Sook, who includes several version of the piece on his site, including preliminary, uncolored, and finished versions.