Commander Nylix

Pack Tactics. The kruthik has advantage on an attack roll against a creature if at least one of the kruthik’s allies is within 5 feet of the creature and the ally isn’t incapacitated.

Tunneler. The kruthik can burrow through solid rock at half its burrowing speed and leaves a 10-foot-diameter tunnel in its wake.

Multiattack. The Insectoid Commander makes two Heavy Mallet or Spine Throw attacks..

Heavy Mallet. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 12 (2d10 + 4) bludgeoning damage and target must succeed on a DC 15 Constitution save or be **Stunned** for one turn.  

Spine Throw. Ranged Weapon Attack: +7 to hit, range 30/120 ft., one target. Hit: 10 (2d8 + 4) piercing damage, and target must succeed on a DC 14 Strength save or be **Restrained**.

*Crushing Roar:* The Commander emits a deafening roar. All creatures within a 30-ft radius must make a DC 15 Wisdom save or become **Frightened** until the end of their next turn.  

*Commanding Roar (Recharge 5-6):* All insectoid allies within 30 feet deal an additional 1d6 damage until the Commander’s next turn.