Choke

Using magical energy, you attempt to choke the life out of a creature. As an action, you choose a single target you can see within range. That creature makes a Constitution saving throw. On a failure, the creature begins to choke, taking 4d4 necrotic damage per turn. They may repeat the saving throw at the end of each of their turns, ending the effect on a success. While choking, all attacks against the creature have advantage, and the creature's own attacks have disadvantage. Furthermore, the creature's speed is halved. If the creature is still affected by the spell after one minute has passed, they fall unconscious. Creatures that do not need to breathe are unaffected by this spell.