Image promptgargantuan ancient brass dragon, weathered sand-scoured dull brass scales, plate-like head crest, long trailing chin-barbels, warm intelligent eyes, searing flame breath and drowsy sleep-vapor shimmer, sprawled across desert dunes and buried ruin pillars, half-coiled around toppled columns, draped tattered-sail wings, dusk, immense horizon-spanning scale, dark fantasy, grimdark, painterly digital art, dramatic chiaroscuro lighting, muted desaturated palette with corrupted-crimson accents, weathered post-Cataclysm atmosphere, intricate high detail, cinematic composition

Ancient Brass Dragon

Gargantuan Dragon (Metallic), Chaotic Good
CR 20ControllerUnderground
AC 20
Initiative +12 (22)
HP 332 (19d20 + 133)
Speed 40 ft., Burrow 40 ft., Fly 80 ft.
STR
27
+8
save +8
DEX
10
+0
save +6
CON
25
+7
save +7
INT
16
+3
save +3
WIS
15
+2
save +8
CHA
22
+6
save +6
Skills History +9, Perception +14, Persuasion +12, Stealth
Immunities Fire
Senses Blindsight 60 ft., Darkvision 120 ft.;
Languages Common, Draconic

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 (A) Sleep Breath or Scorching Ray (B) Spellcasting to cast (level 3 version).

Rend. Melee Attack Roll: Hit: +14, reach 15 ft. 19 (2d10

  • 8) Slashing damage plus 7 (2d6) Fire damage.

Fire Breath (Recharge 5–6) Dexterity Saving Throw: . DC 21, each creature in a 90-foot-long, 5-foot- Failure: Success: wide Line. 58 (13d8) Fire damage. Half damage.

Sleep Breath. Constitution Saving Throw: DC 21, each Failure: creature in a 90-foot Cone. The target has the Incapacitated condition until the end of its next turn, at Second Failure: which point it repeats the save. The target has the Unconscious condition for 10 minutes. This effect ends for the target if it takes damage or a creature within 5 feet of it takes an action to wake it.

Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 20): Detect Magic Minor Illusion Scorching Ray At Will: , , Shapechange (level 3 version), (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and no Concentration or Temporary Hit Points Speak with Animals required to maintain the spell), Control Weather Detect Thoughts 1/Day Each: ,

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.

Blazing Light. The dragon uses Spellcasting to cast Scorching Ray (level 3 version).

Pounce. The dragon moves up to half its Speed, and it makes one Rend attack.

Scorching Sands. Dexterity Saving Throw: DC 20, one 36 (8d8) Fire damage, and the target’s Speed is halved Failure or Success: until the end of its next turn. The dragon can’t take this action again until the start of its next turn. Bronze Dragons Bronze Dragon Wyrmling