Iron Golem

Large Construct, unaligned

AC20 (natural armor)HP252 (24d10 + 120)Speed30 ft., swim 15 ft., climb 15 ft., crawl 15 ft.

STR

24 (+7)

DEX

9 (-1)

CON

20 (+5)

INT

3 (-4)

WIS

11 (+0)

CHA

1 (-5)

Sensesdarkvision 120 ft., passive Perception 10LanguagesUnderstands Common plus two other languages but can't speakCR16 (15,000 XP)

Traits

Fire Absorption. Whenever the golem is subjected to Fire damage, it regains a number of Hit Points equal to the Fire damage dealt.

Immutable Form. The golem can't shape-shift.

Magic Resistance. The golem has Advantage on saving throws against spells and other magical effects.

Actions

Bladed Arm. Melee Attack Roll: +12, reach 10 ft. 20 (3d8 + 7) Slashing damage plus 10 (3d6) Fire damage.

Fiery Bolt. Ranged Attack Roll: +10, range 120 ft. 36 (8d8) Fire damage.

Multiattack. The golem makes two attacks, using Bladed Arm or Fiery Bolt in any combination.

Poison Breath. Constitution Saving Throw: DC 18, each creature in a 60-foot Cone. Failure: 55 (10d10) Poison damage. Success: Half damage.

Creature data from the System Reference Document 5.2, CC-BY-4.0. See licensing.