Art by Francisco Ibáñez.
I had no instants or red cards so far. The concept for rage quit came from red mostly always meaning fury and anger, and non-permanent spells usually representing actions.
A rage quit, for those that don’t know, it’s when a player quits a game after losing or just before actually losing, usually storming off and spouting insults and complains.
Your creature is not destroyed; before that happens, it leaves the battlefield by itself, flaming everything on its way.
So in this case, the rage quit card actually prevents rage quitting. If your big bad creature would be destroyed, instead of crying, you can wipe out your opponent’s board and smack him in the face.
It enables such a come back I feel tempted to call it “blue shell”!
Cost and rarity were a given.