Adamantine Archdragon

Forged in the deep places where metal and stone are born, the adamantine archdragon is a mountain given will — its hide a living plate of the hardest substance known, its disdain for lesser creatures absolute. Even a critical blow rings off its scales like a hammer off an anvil.

An adamantine archdragon has +2 status to all saves vs. primal.

Abandon Armor Once the adamantine dragon is reduced to fewer than half their Hit Points, their resistance is reduced by 10 and they gain a +10 circumstance bonus to their Speeds.

Frightful Presence (aura, emotion, fear, mental) 90 feet, DC 41.

Resilient Form [Reaction] Trigger The dragon is critically hit with a weapon or unarmed attack; Effect The archdragon's scales ward off deadly attacks. The dragon attempts a DC 14 flat check. On a success, the triggering attack becomes a normal hit.

Level 21

Perception +35 · Senses darkvision, scent (imprecise) 60 feet, tremorsense (imprecise) 120 feet · Languages Aklo, Common, Draconic, Fey, Petran, Sakvroth, Talican · Skills Acrobatics +35, Athletics +42, Intimidation +36, Mining Lore +34, Nature +35, Survival +37

HP 400 · Immunities paralyzed, petrified, sleep · Resistances physical 20 (except adamantine)

Speed 50 feet, burrow 60 feet, fly 200 feet

• Melee Jaws [Single Action] +39 (reach 20 ft, Magical), Damage 4d12+18 piercing plus
• Melee Claw [Single Action] +39 (reach 15 ft, Agile, magical), Damage 4d8+18 slashing plus
• Melee Tail [Single Action] +37 (reach 25 ft, Magical), Damage 4d10+18 bludgeoning
• Ranged Rock [Single Action] +37 (range 150 ft, Brutal), Damage 4d8+18 bludgeoning