Aeledan’s Heartseeker

You clench your fist around a wooden stake and the shards explode out from your hand. One target within range must make a constitution saving throw. On a failed save they take 3d4 piercing damage and become incapacitated until the end of your next turn. On a success, they take half damage and do not become incapacitated. Vampires have disadvantage against this saving throw.

When this spell is cast at 3rd level or higher, add 1d4 to the damage for each higher spell level.