Starting at 6th level, your patron grants you protection from an element. On a long rest, gain resistance to acid, cold, fire, or lightning damage (your choice) until the end of your next long rest.
As an action while you are holding the your vessel, you target a willing creature you can see within 100 feet of you and create a tether of wispy elemental material that links the target to you. The tether lasts for 1 hour, until you use this feature to create another tether, until the bound target: is reduced to 0 HP, or ends its turn more than 100 ft from you.
You can create the tether a number of times equal to your Charisma modifier, regain on long rest.
While the tether is active, the tethered creature gains resistance to the damage type you chose.