Phrax Weapons evolved shortly before the Third Age of Flight. They were usually projectile weapons or bombs which were powered by the explosion of a phraxcrystal.
The first Phrax Weapon, the Phraxfire Globe was invented by Lentil Spume in the Phrax Glade towards the end of the Second Age of Flight. Phrax Globes were globes filled with stormphrax that would explode when they were thrown and hit their target. Further weapons were invented based on his design. Xanth Filatine used the globes to invent the peaceful use of stormphrax, phraxflight, which led to the Third Age of Flight.