Spellcasting. The aurumach casts one of the following spells, requiring no material components and using Intelligence as the spellcasting ability (spell save DC 19):
At will: detect magic, detect thoughts
1/day each: fly, geas (as an action), slow, suggestion
Multiattack. The aurumach makes three Manifested Blade or Gleaming Ray attacks.
Manifested Blade. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit:23 (4d8 + 5) force damage.
Gleaming Ray. Ranged Spell Attack: +11 to hit, range 120 ft., one target. Hit:24 (3d12 + 5) force damage.
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 (3d10) 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 incapacitated condition or dies, or when the aurumach uses a bonus action to end it.
Invoke Weakness (Recharge 5–6). 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 (6d8) force damage.
From redoubts near the Spire in the Outlands, aurumachs oversee the preservation of the cosmic status quo, serving as leaders and strategists of the rilmani. Employing mysterious magic, occult calculations, and networks of informants, aurumachs monitor forces across the planes. Only when planar balance is under threat of total collapse do these elusive, gold-skinned beings leave the Outlands, manifesting gleaming blades to destroy those that threaten multiversal stability.