Prerequisite: Level 12+
Your connection to the raw chaos of the elemental planes shifts with each rest, granting you temporary affinity to a single destructive force. You gain the following benefits:
After you finish a long rest, roll a d10 to determine your elemental attunement: 1–2: acid, 3–4: fire, 5–6: cold, 7–8: lightning, 9–10: thunder. You can choose instead of rolling, but doing so causes you to gain one level of exhaustion.
Elemental Affinity. When you deal damage of a type listed above other than the one you are currently attuned to, you may change that damage to your currently attuned damage type. You can do this a number of times equal to your proficiency bonus per long rest.
Elemental Authority. You have advantage on Charisma ability checks against Elementals.
Elemental Resilience. You gain resistance against the damage type of the attuned element and a damage threshold against it equal to twice your proficiency bonus.
