CR 9
HP 102, hd12d10+36
AC 18 (?2 size, +2 Dex, +8 natural), touch 10, flat-fooded 16
Fort +11, Ref +10, Will +5
Speed 20 ft. (4 squares), fly 60 ft. (average)
Initiative +6
Spot , Listen
Standard attacks
BAB +12, Grapple +25
Full attack: Bite +15 melee (2d8+5) and 2 claws +13 melee (1d6+2); or sonic lance +12 ranged touch (6d6)
Special Attacks/Qualities
Sonic lance, explosion
Blindsight 120 ft., immunities, vulnerability to sonic
Skills Listen +12, Move Silently +10
Feats Endurance, Flyby Attack, Improved Initiative, Multiattack, Snatch
Str 20
Con 17
Dex 14
Int 7
Wis 13
Cha 11
Alignment Often neutral,
Environment Temperate mountains,
Organisation Solitary or clutch (2?4)

A yrthak is blind. It senses sound and movement by means of a special organ on its long tongue. It emits powerfully focused beams of sound from the protrusion on its head. The creature is a yellowish-green color, with the wings and fin being more yellow and the head and body more green. The teeth are yellow.
A yrthak is about 20 feet long, with a wingspan of 40 feet. It weighs about 5,000 pounds.
Despite their intelligence, yrthaks do not speak.


A yrthak prefers to attack from the air, strafing the ground with sonic attacks or snatching up and dropping prey.
Sonic Lance (Su): Once every 2 rounds, a yrthak can focus sonic energy in a ray up to 60 feet long. This is a ranged touch attack that deals 6d6 points of damage to a single target.
Explosion (Su): A yrthak can fire its sonic lance at the ground, a large rock, a stone wall, or the like to create an explosion of shattered stone. This attack deals 2d6 points of piercing damage to all within 10 feet of the effect?s center. This counts as a use of the sonic lance attack and thus is usable only once every 2 rounds, and never on the round following a sonic lance attack.
Blindsight (Ex): A yrthak can ascertain all foes within 120 feet. Beyond that range it is considered blinded. Yrthaks are invulnerable to gaze attacks, visual effects of spells such as illusions, and other attack forms that rely on sight. A yrthak whose sense of hearing is impaired is effectively blinded, treating all targets as having total concealment.
Immunities: Yrthaks have immunity to gaze attacks, visual effects, illusions, and other attack forms that rely on sight.
Skills: Yrthaks have a +4 racial bonus on Listen checks.

System Reference Document -> List of Creatures (SRD)
This article is a D20 reference page
The System Reference Document is a comprehensive toolbox consisting of rules, races, classes, feats, skills, various systems, spells, magic items, and monsters compatible with the d20 System version of Dungeons & Dragons and various other roleplaying games from Wizards of the Coast.

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