The Frostbeast is an enemy in Final Fantasy IV: The After Years. They are moderately dangerous, and should be taken care of by using Fira and Bomb Fragment. When with other enemies, it will only use physical attacks, but when left alone, it will start its pattern of Icestorm > Attack. Therefore, to avoid Icestorm the player needs to defeat all Frostbeasts in the battle and not leave any left standing. Fire-elemental weapons and skills work best in dealing with them.