Gift of the Ancient Dragon Turtle

You have entered into a pact with an ancient dragon turtle—a primeval leviathan who reigns over deep ocean trenches and volcanic vents. As its chosen, you are marked by oceanic resilience, storm-forged might, and primal understanding of the natural world.

You gain the following benefits:

Increase your Charisma score by 1, to a maximum of 20.

You learn the spells Bubble Vault, Water Breathing, and Chain Lightning. These are considered warlock spells for you.

You can cast each of these spells once without expending a spell slot. You regain the ability to do so when you finish a long rest.

After you have used the free casting, you can cast each of these spells again by expending a spell slot of the appropriate level.

You gain proficiency in Nature checks. If you are already proficient, you instead gain expertise in Nature, allowing you to double your proficiency bonus.