Osseous Impalement

Massive bone spikes sprout under up to four creatures on the ground of your choice you can see within range. They must succeed on a Dexterity saving throw or take 3d10 piercing damage and be impaled by the spike, becoming restrained and held aloft 5 feet in the air for the duration. A creature restrained in this way takes 1d10 piercing damage at the start of each of its turns. A creature can use its action to make an Athletics check contested by your spell save DC, breaking the bone spike and freeing itself on a success.

Using a Higher-Level Spell Slot. The damage (both initial and ongoing) increases by 1d10 for each spell slot level above 3.

Steinhardt's Guide to the Eldritch Hunt 194

V, S, M

Material Components

a calcified bamboo stick

Related Discipline

Sorcerer, Warlock, Wizard

Related School

Conjuration [Osteomancy]

Effect Duration

Concentration, Up to 1 Minute

Effect Casting Time

Action

Range

60 feet

Level

Level 3