Sources
CR
Type
Size
Alignment
Movement

Stone Dragon Statue

Large Construct, Unaligned

Armor Class 17 (natural armor)
Hit Points 178 (17d10 + 85)
Speed 30 ft.
STR
22
+6
DEX
9
-1
CON
20
+5
INT
3
-4
WIS
11
+0
CHA
1
-5
Damage Immunities poison, psychic; bludgeoning, piercing, slashing, from nonmagical attacks that aren't adamantine
Condition Immunities Charmed, Exhaustion, Frightened, Paralyzed, Petrified, Poisoned
Senses darkvision 120 ft., passive Perception 10
Languages understands the languages of its creator but can't speak
Challenge 10 (5,900 XP)

Traits

Immutable Form. The statue is immune to any spell or effect that would alter its form.

Magic Resistance. The statue has advantage on saving throws against spells and other magical effects.

Magic Weapons. The statue's weapon attacks are magical.

Actions

Steam Breath. The statue exhales steam in a line that is 30 feet long and 10 feet wide. Each creature in that area must make a DC 15 Constitution saving throw, taking 7 (2d4 + 2) fire damage on a failed save, or half as much damage on a successful one.