Adult Brass Dragon

Legendary Resistance (3/Day, or 4/Day in Lair). If the dragon fails a saving throw, it can choose to succeed instead.

Fire Breath. Dexterity Saving Throw: DC 18, each creature in a 60-foot-long, 5-foot-wide Line. Failure: 45 (10d8) Fire damage. Success: Half damage.

Multiattack. The dragon makes three Rend attacks. It can replace one attack with a use of (A) Sleep Breath or (B) Spellcasting to cast Scorching Ray.

Rend. Melee Attack Roll: +11, reach 10 ft. 17 (2d10 + 6) Slashing damage plus 4 (1d8) Fire damage.

Sleep Breath. Constitution Saving Throw: DC 18, each creature in a 60-foot Cone. Failure: The target has the Incapacitated condition until the end of its next turn, at which point it repeats the save. Second Failure 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 16): - **At Will:** Detect Magic, Minor Illusion, Scorching Ray, Shapechange, Speak with Animals - **1/Day Each:** Detect Thoughts, Control Weather