The Cleaved

Stitching Strike. Melee or Ranged Weapon Attack: +8 to hit, reach 10 ft., one creature. Hit: 2d8 + 5 bludgeoning + Burning Stitches. Melee grapple attack against one creature within 10 ft. On a hit the target is restrained between the Cleaved's two halves, taking 2d8 + 5 bludgeoning damage. While restrained the target suffers Burning Stitches at the start of each of the Cleaved's turns. The target may escape with a successful Athletics or Acrobatics check (DC 16) at the end of its turn.

Repulsion Surge (Recharge 5-6). Each target must make a DC 15 Dexterity saving throw (each creature in 15 ft radius). half damage, no displacement Hit: 4d6 force. A violent force pulse erupts outward from the split. Each creature within 15 ft must make a DC 15 Dexterity saving throw or be hurled 20 ft backward and take 4d6 force damage (half on save). Restrained targets automatically fail.

Skewer the Living (Recharge after first use per encounter). Each target must make a DC 16 Constitution saving throw. half damage, no impalement Hit: 6d6 piercing. If a creature is restrained by Stitching Strike when the Cleaved is reduced to half HP, the Cleaved attempts to embed the creature between its halves as a "stitch." The target must succeed on a DC 16 Constitution save or be impaled, taking 6d6 piercing damage and gaining the unconscious condition. The Cleaved regains 15 HP.

Failed Closure. When a player rolls a critical failure within 15 ft of the Cleaved, the creature reflexively lunges toward them and makes one Stitching Strike against them as a reaction.