rare le medium fiend 

Perception +13; darkvision

Languages Common, Infernal (Can't Speak Any Language)

Skills Acrobatics +18, Athletics +16, Deception +18, Occultism +14, Performance +18, Stealth +18

Str +4 Dex +6 Con +3 Int +4 Wis +3 Cha +6

AC  27; Fort +13, Ref +19, Will +16; +2 status to all saves vs. composition spells

HP 160; Immunities disease, poison; Weaknesses good 10

Performance Anxiety A dreadsong dancer is stunned 1 if they see or hear a creature critically succeed at a Performance check or at a saving throw against their Dreadsong. The dreadsong dancer is quickened 1 for 1 round if they see or hear a creature critically fail at a Performance check or a saving throw against their Dreadsong. They can use the extra action only to Stride or Strike.

Jealous Musician [R] Trigger A creature plays an instrument while Casting a Spell or casts a composition spell within 20 feet of the dreadsong dancer; Effect The dreadsong dancer Strides up to 20 feet and makes a songblade Strike against the triggering creature. If the Strike hits, the spell is disrupted.

Speed 25 feet

Melee [>] claw +18 (agile, finesse), Damage 2d10+6 slashing

Melee [>] songblade +20 (agile, deadly d10, finesse, magical, trip), Damage 2d10+8 slashing

Occult Innate Spells DC 23; 4th dimension door; 2nd invisibility, silence; 1st true strike (×3)

Dreadsong [>>] (auditory, concentrate, fear, illusion, mental) The dreadsong dancer whirls their howling songblades and cloaks themself in illusion magic. Each non-fiend creature in a 30-foot emanation from the dreadsong dancer must attempt a DC 29 Will save. Critical Success No effect, and the creature is temporarily immune for 24 hours. The dreadsong dancer is affected by their performance anxiety.Success The creature is frightened 1.Failure The creature is frightened 2, and the dreadsong dancer is undetected by the creature for 1 minute. The creature can't use Seek to find the dreadsong dancer.Critical Failure As failure, but the creature can't reduce its frightened condition below 2 for 1 minute. In addition, the dreadsong dancer is affected by its performance anxiety.

Rend [>] songblade

AoE2, page 81.