The game ends when a player reveals the two mimics, uncovering them
Raph & Mikey, Troublemakers | 5 Colorless Mana, 2 Hybrid Red/Green Mana Legendary Creature Mutant Ninja Turtle Trample, haste Whenever Raph & Mikey attack, reveal cards from the top of your library until you reveal a creature card
Zombies George Fan, all of whom were credited on their (generally conservatively-designed) cards
In practice, this is rarely the case, as many cards are difficult to sell individually, and the effort involved reduces the effective profit
With the removal of Rule 4 in Commander last year, which restricted the color or colors of mana you could produce to your commanders color identity, Praetor's Grasp got better because youre no longer forced to find cards in your colors if you want to cast it later
I'll probably implement that in a few other places eventually