Enchain

You spawn a murky puddle like portal that may not be entered under the chosen enemy with a lower challenge level or level within your range. Strips of chains whiplash around, attempting to tangle itself with the victim. The creature has to either succeed a strength or dexternity saving throw. If it succeeds, the spell fails and cannot be casted to the creature for the next 24 hours. If the creature fails however, chains vigourously wraps its arms and legs. When the creature's arms and legs are enchained, the creature is pulled down to the ground and is restrained. The creature may attempt to break the chains every end of its turn with a strength saving throw. If the creature is chained for a longer period than 1 hour, it takes 2d4 damage every 10 minutes. If the creature dies, the spell immediately ends.