Thorra's frigid Thorn

Upon casting this Spell, the caster forms two icicles on the palm of both of his hands which they ram into the ground.

Two giant spears of ice emerge from the ground within range directly under two targets you choose. These two targets have to make a Dexterity Saving Throw against your Spell Save DC. If they succeed, they only suffer half damage. If they fail, however, they suffer 1d8 piercing damage and 1d8 cold damage and are restrained. This lasts for 1 minute, until dispelled or if the targets succeed on a Strength Saving Throw against your Spell Save DC as an action.

Casting at higher Level. When cast at higher levels, the cold damage increases by 1d8 per Spell Level above 2nd.