Chains of Darkness

An inky black circle with a radius of 5ft apperates around a creature of your choosing within 30ft. The target must succeed on a Dexterity saving throw with a DC 13 or have the condition restrained. If the creature is in the circle at the end of their turn, they take 1d8 necrotic damage. The creature can make a DC 16 strength (Athletics) check to break out of the chains. At Higher Levels. When you cast this spell using a spell slot of 2 Level or higher, the range increases by 5ft, and the dex DC increases by 1.