Water breathing

The recipient of a water breathing spell is able to breathe water freely for the duration of the spell. The caster can touch more than one creature with a single casting; in this case the duration is divided by the number of creatures touched.

The reverse, air breathing, enables water-breathing creatures to comfortably survive in the atmosphere for an equal duration.

Note that neither version prevents the recipient creature from breathing in its natural element.

Note: This version of water breathing originally appeared in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.