This card was designed for Zombie Fluxx. Although it is not, itself a Creeper, it's clearly for use in decks that HAVE Creepers.
It says: If you have this on the table, you can destroy any Creeper in front of you at any time during your turn. Counts as the Can of Gasoline. Discard during Out of Ammo. (POW!)
Originally released in 2008 in a pack with six extra zombies to promote the second printing of Zombie Fluxx. These were the extra zombies we had created to make all zombies in the deck unique. Since those six zombies are included in all Zombie Fluxx decks now, the Flamethrower was really the main point of getting the pack for most people, so we reprinted just that card as a single in 2014.