Prerequisite: 9th-level Ranger You have adapted to life on one of the great planes of the multiverse. Choose one plane from the table below (or the corresponding plane in your setting). You gain resistance to the corresponding damage type. Also, you and up to ten creatures who travel with you, have advantage on saving throws to resist the hostile effects of that plane.

PlaneDamage
Astral SeaRadiant
FeywildPsychic
MechanusForce
ShadowfellNecrotic
AirThunder
EarthAcid
FireFire
WaterCold

You can learn this Knack more than once, but you must choose a different plane of existence each time you do so.