(ritual); 1 hour/mana
As two actions, you swirl your hand in a circular motion to create a bubble of air around the head of a willing creature that you can touch or see within 5 meters. The air allows the creature to breathe and it continuously renews itself.
Augment
You can target one additional creature for each additional mana expended. The creatures must be within 5 meters of each other when you target them.