Borderlands 2: Puissant Norfleet

Puissant Norfleet is a legendary drop from Vermivorous the Invincible in Borderlands 2

Puissant Norfleet is a orange Rocket Launcher in Borderlands 2

It drops from Vermivorous the Invincible (prefix and stats for the Norfleet you get will vary. Other than Fire Norfleet there is a Corrosive Norfleet called Pertinent Norfleet, a Slag Norfleet called Parataxis Norfleet, Parelectronomic Norfleet which is a Shock Norfleet, and another fire Norfleet called Punitory Norfleet)