Thorned Strike

You imbue your weapon with natural energy, allowing you to strike your target with thorns that damage and hinder them. Make a melee weapon attack against a creature within your reach. On a hit, the target takes normal weapon damage plus an additional 1d8 poison damage. Additionally, the target's movement speed is reduced by 15 feet until the end of its next turn. It must also make a Strength saving throw against your spell save DC or be restrained by thorny vines for 2 rounds.

At Higher Levels: The additional poison damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).