Adaptation

You touch a creature and bestow upon it a magical enhancement. Choose one of the following affects - the target gains the affect until the spell ends.

Aquatic: The target gains a swimming speed of 30 feet and the ability to breath underwater.

Mountainous: The target gains a climbing speed of 30 feet, takes only half as much damage from falling, and is unaffected by the consequences of traveling in altitudes above 10,000 feet.

Noxious: The target can breathe normally in any environment, hold its breath for up to 10 minutes, and has advantage on saving throws made against harmful gases and vapors (such as cloudkill and stinking cloud effect, inhaled poisons, and the breath weapons of some dragons). 

Temperature: The target becomes unaffected by the consequences of extreme ambient temperature, such as temperatures below 0 or above 100 degrees Fahrenheit.  

Underground: The target gains a burrowing speed of 15 feet and tremorsense out to 30 feet. Further, it always knows which direction is north.

At higher levels. When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st.