Water Breathing (5th Level Utility)

Close-quarters spell
Quick action to cast

You can breathe underwater for the rest of the battle (or about five minutes). You become aware a couple of rounds ahead of when the magic of the spell is about to end.

7th Level Spell: 
You and 1d4 + 2 nearby allies can breathe underwater this battle.
9th Level Spell: 
The spell affects you and 1d6 + 2 nearby allies for 4d6 hours.