(2 uses) Blow the conch to grant all who within Reach 10 the ability to breathe while underwater as if it were air for 4 hours (or one Hex Turn in Curse of the Black Mist). You can expend an additional use to increase the time limit by 4 hours.

Recharge: Soak in at least one 63-gallon (240 liter) barrel's worth of sea water for 24 hours.