You draw upon the ancient fury beneath the world’s surface. Stone, soil, roots, and writhing tendrils crawl across your body, encasing you in a living mantle torn from the earth itself. Until the spell ends, you gain the following benefits:

Tectonic Armor

The mantle forms a shell of stone, wood, and bone around you. You gain a +3 bonus to AC.

Earthen Strike

As a bonus action, you can cause a limb, root, or earthen tendril of the mantle to lash out at a creature within 10 feet.

Make a melee spell attack against the target. On a hit, it takes 4d6 + your spellcasting ability modifier necrotic damage.

Unyielding Earth

You have advantage on Strength and Constitution saving throws.

While touching the ground, you can't be knocked prone or moved against your will.

Earth Glide

You gain a burrowing speed equal to your walking speed. You can move through nonmagical, unworked earth and stone without disturbing the material you move through.

Tectonic Flight

The mantle can wrench itself free of the ground and carry you through the air. You gain a 15-foot flying speed and can hover.

Earthen Vitality

At the start of each of your turns while touching the ground, you gain temporary hit points equal to your spellcasting ability modifier.

Wrath of the Mantle

You can sacrifice the mantle to unleash all of its power in a single violent convulsion.

On your turn, you expend your action, bonus action, reaction, and all of your movement for that turn. You must have all of these available to use this ability.

The earth around you erupts as stone fractures and massive roots and earthen tendrils whip violently around you. Each creature of your choice within 20 feet of you takes 6d6 + your spellcasting ability modifier necrotic damage.

Each affected creature must then make a Dexterity saving throw against your spell save DC. On a failed save, the creature is restrained, pinned to the ground by grasping roots, stone, and earthen tendrils.

A restrained creature repeats the saving throw at the start of each of its turns, ending the condition on itself on a success.

After Wrath of the Mantle resolves, Cariel’s Tectonic Mantle ends.

Blood Price

When you cast this spell, you must expend all of your remaining Hit Dice. These Hit Dice are spent without being rolled, and you regain no hit points from them.

At Higher Levels

When you cast this spell using a spell slot higher than 6th level, its maximum duration increases by 1 minute, and the damage of Earthen Strike increases by 1d6 for each slot level above 6th.

Wrath of the Mantle increases by 2d6 for each slot level above 6th, maintaining its damage at twice the damage dice of Earthen Strike.