Deep Breath (Reversible)

With this spell, the caster allows one creature to take a single breath that lasts for the duration of the spell. The spell bestows no ability to maneuver or function underwater or while buried in sand but it does temporarily remove the need to breathe. Once the spell ends, an individual who cannot breathe normally begins to suffocate after 2 his Constitution score in rounds (a Constitution check is required each round, with a -2 cumulative penalty; after failing a check 1d6 points of damage is taken per round).

If the deep breath spell is cast on a creature that has already held its breath for a few rounds, the spell acts as a clean gulp of air – when the spell wears off the creature begins the suffocation procedure fresh. The spell also lets an individual avoid the ill effects of most gases, magical and otherwise.

The material component for this spell is a tiny bladder of air, usually made from animal skins, which is burst over the recipient's mouth and nose.