Beschrijving
You gesture at a point you can see within range and summon a 20-foot radius sphere of blackness, a void of magical darkness which attempts to devour whatever enters. darkvision cannot penetrate it, and no light can illuminate the darkness unless caused by a spell of a higher level.
A creature that starts its turn within the void must make a Constitution saving throw. On a failure, it takes 2d6 cold damage and 2d6 necrotic damage, and its speed is reduced by 5 feet to a minimum of 5 feet. This speed reduction stacks with successive failures, and ends once the creature starts its turn outside the void. On a success, the creature takes half as much damage and its speed is not reduced.