le medium duergar dwarf humanoid 

Perception +8; darkvision

Languages Common, Dwarven, Undercommon

Skills Athletics +7, Deception +7, Intimidation +7, Occultism +5, Religion +6, Survival +6

Str +2 Dex +0 Con +2 Int +0 Wis +2 Cha +3

Items chain mail, maul, religious symbol

AC  18; Fort +8, Ref +4, Will +8; +2 status to all saves vs. magic, iron mind

HP 30

Iron Mind Duergar taskmasters automatically disbelieve all illusion of 1st level or lower.

Light Blindness

Speed 20 feet

Melee [>] maul +8 (shove), Damage 1d12+2 bludgeoning

Divine Prepared Spells DC 18; 1st fear, harm, magic weapon, Cantrips (1st), shield; Cantrips (1st) detect magic, shield

Occult Innate Spells DC 18; 2nd enlarge (self only), invisibility (self only)

Take Them Down! [>] The duergar taskmaster smashes their maul into the ground and invokes Bebraevraes's name to rally their allies to action. All allied duergars of equal or lower level that are within 20 feet of the duergar taskmaster gain a +1 status bonus to attack rolls and damage rolls until the end of the duergar taskmaster's next turn.

Bestiary, page 139.