5e SRD:Ancient Blue Dragon

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Ancient Blue Dragon

Gargantuan dragon, lawful evil Armor Class 22 (natural armor) Hit Points 481 (26d20 + 208) Speed 40 ft., burrow 40 ft., fly 80 ft. STR DEX CON INT WIS CHA 29 (+9) 10 (+0) 27 (+8) 18 (+4) 17 (+3) 21 (+5) Saving Throws Dex +7, Con +15, Wis +10, Cha +12 Skills Perception +17, Stealth +7 Damage Immunities lightning Senses blindsight 60 ft., darkvision 120 ft., passive Perception 27 Languages Common, Draconic Challenge 23 (50,000 XP) Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead. ACTIONS Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws. Bite. Melee Weapon Attack: +16 to hit, reach 15 ft., one target. Hit: 20 (2d10 + 9) piercing damage plus 11 (2d10) lightning damage. Claw. Melee Weapon Attack: +16 to hit, reach 10 ft., one target. Hit: 16 (2d6 + 9) slashing damage. Tail. Melee Weapon Attack: +16 to hit, reach 20 ft., one target. Hit: 18 (2d8 + 9) bludgeoning damage. Frightful Presence. Each creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 20 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the dragon's Frightful Presence for the next 24 hours. Lightning Breath (Recharge 5-6). The dragon exhales lightning in a 120-foot line that is 10 feet wide. Each creature in that line must make a DC 23 Dexterity saving throw, taking 88 (16d10) lightning damage on a failed save, or half as much damage on a successful one. LEGENDARY ACTIONS The dragon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 24 Dexterity saving throw or take 16 (2d6 + 9) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.

See 5e SRD:Dragons.

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