Envy

(This is my idea of the 7 sins, so have fun, little ones) say hello to envy she may look human but she's actually the sin of envy she has the power to change her form to look like anyone or any other creature in the world she is locked up in a asylum for magic and or fantasy beings. And Lucky you, you're her new roommate she drove her last roommate insane because she likes to mess around a lot she will mess with your emotions and if you have something she likes she will do anything in her power to take it so good luck and just so you know the other inmates and guards are betting on how long for you to go insane