Mordenkainen's Tome of Foes
Fire Elemental Myrmidon CR: 7
Medium elemental, neutral
Armor Class: 18 (plate armor)
Hit Points: 123 (19d8 + 38) 19d8+38
Speed:
40 ft
Damage Resistances: bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities: fire, poison
Condition Immunities: paralyzed, petrified, poisoned, prone
Senses: darkvision 60 ft., passive Perception 10
Languages: Ignan, one language of its creator's choice
Challenge Rating: 7
Fire Elemental Myrmidon by WotC
Illumination. The myrmidon sheds bright light in a 20-foot radius and dim light in a 40-foot radius.
Magic Weapons. The myrmidon's weapon attacks are magical.
Water Susceptibility. For every 5 feet the myrmidon moves in 1 foot or more of water, it takes 2 (1d4) 1d4 cold damage.
Actions
Multiattack. The myrmidon makes three scimitar attacks.
Scimitar. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) 1d6+4 slashing damage.
Fiery Strikes (Recharge 6). The myrmidon uses Multiattack. Each attack that hits deals an extra 5 (1d10) 1d10 fire damage.
Elemental myrmidons are elementals conjured and bound by magic into ritually created suits of plate armor. In this form, they possess no recollection of their former existence as free elementals. They exist only to follow the commands of their creators.