The aurumach makes three Manifested Blade or Gleaming Ray attacks.
Manifested Blade
Melee Weapon Attack+11 to hit, reach 10 ft., one target. 23 () π Force damage.
Gleaming Ray
Ranged Spell Attack+11 to hit, range 120 ft., one target. 24 () π Force damage.
Bonus Actions
Aura of Blades
The aurumach manifests a spectral, golden aura of blades around itself. While this aura is manifested, each creature that starts its turn within 10 feet of the aurumach must make a DC 19 Dexterity saving throw, taking 16 () π Force damage on a failed save, or half as much damage on a successful one. The aura disappears after 1 minute, when the aurumach has the condition or dies, or when the aurumach uses a bonus action to end it.
Invoke Weakness Recharge 5
The aurumach attempts to use its magic to weaken the defenses of a creature it can see within 120 feet of itself. The target must succeed on a DC 19 Wisdom saving throw or become cursed until the end of the aurumach's next turn. The next time the aurumach hits the cursed target with a Manifested Blade or Gleaming Ray attack, the target takes an extra 27 () π Force damage.