Axetinguisher

The axetinguisher is a melee weapon available to the pyro in all non-chest sources beginning on the same level as the heavy.medic boss is first encountered. It swings every 0.4 seconds and does 100 damage to enemies who are currently on fire, but does just about nothing (0.01 damage and no knock back) to enemies who are not on fire.

Strategy
Mandarbmax says: Good against bosses, but damage is one of the least important characteristics of a melee weapon to me, so I don't use the axetinguisher.