Alpha Blot Worg

Regeneration. The Blot Alpha regains 10 HP at the start of its turn, unless it takes radiant damage.

Gloomblood Aura. A 10-foot radius around the Blot Alpha is covered in its inky, corrosive ooze. Enemies within the aura have half speed and take 5 acid damage at the start of their turn.

Seige Monster. Deals double damage to buildings and structures.

Multiattack. The Alpha Blot Worg makes 3 attacks: a mix of Bite or Tendril Slam attacks.

Bite. Melee Attack Roll: +9, reach 5 ft. Hit: 29 (2d10 + 6) Piercing damage, and (3d6) Acid damage.

Tendril Slam. Melee Attack Roll: +9, reach 15 ft. Hit: 22 (3d10 + 6) Bludgeoning damage.

Engulfing Maw (Recharge 5-6). The Alpha Blot Worg lunges at a Large or smaller creature within 10 feet. The target must make a DC 17 Strength save or be swallowed. A swallowed creature is blinded and restrained, taking (6d6) acid damage at the start of each of the Alpha Blot Worg's turns. The creature can attempt to escape by making a DC 17 Strength (Athletics) check at the end of their turn.

Devour Lesser Blots. The Blot Alpha can absorb any Blotling Ooze within 10 feet of it, regaining 20 HP per ooze absorbed.

Screeching Roar. All creatures in a 60 foot radius must make a DC 18 Constitution save or suffer unending screeching in their ears, gaining the Deafened condition, and taking (4d10 + 7) Thunder damage.