D&D 5e 2024 rules. Stats use the 2024 rules from the System Reference Document 5.2.1.
The Adult Black Dragon is a Huge dragon, with Armor Class 19, 195 hit points, and Challenge Rating 14. The Adult Black Dragon is a cruel, amphibious predator that thrives in decaying swamps and marshlands.
Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day, or 4/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 Acid Arrow (level 3 version). Acid Breath (Recharge 5–6). Dexterity Saving Throw: DC 18, each creature in a 60-foot-long, 5-foot-wide Line. Failure: 54 (12d8) Acid damage. Success: Half damage. Legendary Actions Legendary Action Uses: 3 (4 in Lair). Immediately after another creature's turn, the dragon can expend a use to take one of the following actions. The dragon regains all expended uses at the start of each of its turns. Cloud of Insects. Dexterity Saving Throw: DC 17, one creature the dragon can see within 120 feet. Failure: 22 (4d10) Poison damage, and the target has Disadvantage on saving throws to maintain Concentration until the end of its next turn. Failure or Success: The dragon can't take this action again until the start of its next turn. Frightful Presence. The dragon uses Spellcasting to cast Fear. 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.
195 hit points.
Challenge Rating 14.
AC 19.
Speed 40 ft., fly 80 ft., swim 40 ft.
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