First up, we have an Instant card called "Secret Identity" that can be an amazing go-to for those who either need to nerf a hero real quick or, let's be real, you're going to use the Reveal spell on this and give yourself an instant hero that can fly
Nightveil Specter and Grima, Saruman's Footman are both great creatures that totally fit Grand Larceny's theme
Grismold, the Dreadsower Grismold, the Dreadsower is a 3/3 trampling troll shaman that generates plant tokens and gets +1/+1 counters whenever a token dies
So far someone else on this forum said probably real, 2 people on the CGC forum said very likely real, and about 2 dozen people on Facebook said definitely fake lol
Before a card can be sent to the Lost Zone, it must be triggered by a specific card effect first, such as Colresss Experiment and Comfey