1st-level · Transmutation
Casting Time 1 action
Range Touch
Components V, S
Duration 2 hours
Classes Cleric, Druid, Sorcerer, Wizard
The recipient of this spell can breathe and function normally in thin atmosphere, suffering no ill effect at altitudes of up to 20,000 feet. If more than one creature is touched during the casting, the duration is divided evenly among all creatures touched.
When you cast this spell using a spell slot of 2nd level or higher, the duration increases by 2 hours for each slot level above 1st.
Source: Deep Magic 5e · OGL/Open