Trident of the Depths

As you crush a flask of natural sea water you conjure a trident that can be thrown at a target creature using a ranged spell attack. On a successful hit the target takes 4d8 cold damage.

On a successful hit a medium or smaller creature must make a strength saving throw (spell casters DC) or have one of the following actions take place.

1: Taget is pinned in place and considered grappled until its next turn.

or

2: Target is pulled 15 feet toward the spell caster.

Large or greater creatures have advantage on the strength saving throw.