Gamer has been removed
The easiest way I have found to obtain this achievement is to look for a (encounter) card called the lizard dome....if you land on it you can choose between 2 enemies, all of your weapons are stripped from you and you are given an Axe.
Make sure you select the card that has 5 or over enemies. Most times you will be thrown into the dungeon that has fire....simply kick each enemy (b button) into the fire trap OR any other trap and the achievement will pop...no need to kill them, just kick them all into the fire, you may need to keep kicking them over and over into the fire before it pops because sometimes if they are close to the fire they ignite without your kick, which doesn't count.