Energy Mutagen (Lesser)

Price 4 gp; Bulk L

When created, chose one of four energy types: acid, cold, electricity, or fire.You gain resistance to the chosen energy type and add the listed amount of damage on a hit with a melee weapon, but you gain weakness 5 to the other three energy types.

You gain resistance 5, add 1 damage on a hit with a melee weapon, and the duration is 1 minute.