Freeze Blood

5th-level transmutation

Casting Time: 1 action
Range: Touch
Components: V, S
Duration: Concentration, up to 1 minute

When you cast freeze blood as a successful melee spell attack against a living creature with a circulatory system, the creature’s blood freezes. For the spell’s duration, the affected creature’s speed is halved and it takes 4d10 cold damage at the beginning of your turns. If the creature takes bludgeoning damage from a critical hit, the attack’s damage dice are rolled three times instead of twice. An affected creature repeats the saving throw at the end of its turn, ending the effect on a success.