Brightshore

This clever sahaguin weapon can, with a twist of its haft, adjust between being a one-handed battle axe or a two-handed halberd.

It is magic, and has three charges. One charge can be expended to cast Shield of Faith on the bearer, except this shield takes the form of a watery bubble. While the shield is active, they must hold their breath or begin drowning, and cannot speak or cast verbal spells. Two charges can be expended to cast Watery Sphere. It regains charges after a long rest with the weapon's head immersed in water.