Ancient Red Dragon
Gargantuan Dragon, Chaotic Evil
AC 22
HP 507 ()
Speed 40 ft., Climb 40 ft., Fly 80 ft.
Saving Throws DEX , WIS
Skills Perception , Stealth
Immunities Fire
Senses Darkvision 120 ft., Blindsight 60 ft., Passive Perception 26
Languages Common, Draconic
CR 24 (XP 62,000; PB +7)
Traits
Legendary Resistance (4/Day, or 5/Day in Lair). If the dragon fails a saving throw, it can choose to succeed instead.
Actions
Multiattack. The dragon makes three Rend attacks. It can replace one attack with a use of Spellcasting to cast Scorching Ray (level 3 version).
Rend. Melee Attack Roll: , reach 15 ft. Hit: 19 () Slashing damage plus 10 () Fire damage.
Fire Breath (Recharge 5–6). Dexterity Saving Throw: DC 24, each creature in a 90-foot Cone. Failure: 91 () Fire damage. Success: Half damage.
Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 23, +15 to hit with spell attacks):
Legendary Actions
Commanding Presence. The dragon uses Spellcasting to cast Command (level 2 version). The dragon can’t take this action again until the start of its next turn.
Fiery Rays. The dragon uses Spellcasting to cast Scorching Ray (level 3 version). The dragon can’t take this action again until the start of its next turn.
Pounce. The dragon moves up to half its Speed, and it makes one Rend attack.