A layer of reactive ice covers your body for the duration. Ice rapidly expands when a melee attacker hits you, attempting to freeze them. Creatures that damage you with a melee attack must pass a Constitution saving throw or take 3 cold damage for every 6 damage you took. On success, they take half the damage.
A creature that takes more than 20 damage from this spell on a single instance, is Restrained until the end of your next turn.
At Higher levels. Increases the damage by 3 for every 2 levels higher than 2nd level.