Large Dragon, typically Neutral
Armor Class 18 (natural armor)
Hit Points 90 (12d10 + 24)
Speed 20 ft., swim 30 ft.
STR
17 (+3)
DEX
10 (+0)
CON
15 (+2)
INT
8 (-1)
WIS
10 (+0)
CHA
10 (+0)
Saving Throws Dex +2, Con +4, Wis +2
Damage Resistances fire
Senses darkvision 120 ft., passive Perception 10
Languages Draconic
Challenge 4 (1100 XP)
Proficiency Bonus +2
Amphibious.
Actions
Bite.
Steam Breath (Recharge 5-6).