The line comes from Hearthstone, Blizzard's digital card game built around Warcraft characters, and is tied to the Skull of the Man'ari, a Warlock weapon known for bringing demons into play. In the Portuguese version of the game, the remark about good demons being hard to find gives a familiar card a distinct personality, and players began sharing it as a short clip beyond matches. It has stayed in circulation because the joke travels well outside Hearthstone too, working whenever someone is let down by a supposed helper, ally or summon.