Ancient Black Dragon
Ancient Black Dragon
CR 21Gargantuan Dragon (chromatic), Chaotic Evil
Reveal Stat Block
Armor Class
22Hit Points
367 (21d20 + 147)Speed
40 ft., fly 80 ft., swim 40 ft.str
27
+8
dex
14
+2
con
25
+7
int
16
+3
wis
15
+2
cha
22
+6
Traits
Amphibious.The dragon can breathe air and water.
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 Melf's Acid Arrow|XPHB (level 4 version).
Rend.m 15, reach 15 ft. ({@damage 2d8 + 8) Slashing damage plus 9 (2d8) Acid damage.
Acid Breath 5.dex 22, each creature in a 90-foot-long, 10-foot-wide Line [Area of Effect]|XPHB|Line. 67 ( Half damage.
Legendary Actions.The creature can take 3 legendary actions...
Cloud of Insects.dex 21, one creature the dragon can see within 120 feet. 33 ( The dragon can't take this action again until the start of its next turn.
Frightful Presence.The dragon uses Spellcasting to cast Fear|XPHB. The dragon can't take this action again until the start of its next turn.
Pounce.The dragon moves up to half its Speed|XPHB, and it makes one Rend attack.