monster

Warforged Colossus

CR 25

Gargantuan Construct, Unaligned

Reveal Stat Block

Armor Class

23 (natural armor)

Hit Points

410 (20d20 + 200)

Speed

60 ft.

str

+10

dex

con

+10

int

-4

wis

cha

-1

Traits

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

Legendary Resistance (3/Day).If the colossus fails a saving throw, it can choose to succeed instead.

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

Siege Monster.The colossus deals double damage to objects and structures.

Towering Terror.Any enemy outside the colossus that starts its turn within 30 feet of it must succeed on a 26 Wisdom saving throw or be frightened until the start of the enemy's next turn. If the enemy's saving throw is successful, it is immune to this colossus's Towering Terror for the next 24 hours.

Actions

Multiattack.The colossus makes three attacks—one with its slam and two with its eldritch turrets—and then uses Stomp.

Slam.mw 18 to hit, reach 20 ft., one target. ({@damage 3d12 + 10) bludgeoning damage, and the colossus can push the target up to 20 feet away from it.

Eldritch Turret.rs 18 to hit, range 300 ft., one target. ({@damage 4d8) force damage, and if the target is a creature, it is knocked prone.

Stomp.The colossus stomps one of its feet at a point on the ground within 20 feet of it. Any creature in a 20-foot-radius, 20-foot-high cylinder centered on this point must succeed on a 26 Dexterity saving throw or take 33 (6d10) bludgeoning damage and fall prone. Until the colossus uses its Stomp again or moves, the creature is restrained. While restrained in this way, the creature (or another creature within 5 feet of it) can use its action to make a 26 Strength check. On a success, the creature relocates to an unoccupied space of its choice within 5 feet of the colossus and is no longer restrained. Structures, as well as nonmagical objects that are neither being worn nor carried, take the same amount of damage if they are in the cylinder (no save).

Incinerating Beam 5.The colossus fires a beam of light in a 150-foot line that is 10 feet wide. Each creature in the line must make a 26 Dexterity saving throw, taking 60 (11d10) radiant damage on a failed save, or half as much damage on a successful one. A creature reduced to 0 hit points by this beam is disintegrated, leaving behind anything it was wearing or carrying.

Warforged Colossus

In the final days of the Last War, House Cannith unleashed its mightiest creations: the warforged colossi. These enormous mechanical warriors thundered across Cyre, crushing everything in their paths and leaving ruin behind them. Meant to end the war decisively, the colossi pulverized hundreds of soldiers beneath their feet and incinerated whole legions with beams of fiery light that shot from their mouths. This rampage was cut short on the Day of Mourning. The arcane cataclysm that engulfed Cyre destroyed most of the warforged colossi, causing them to collapse into lifeless heaps.

Colossal Survivors

Some warforged colossi survived the Day of Mourning more or less intact and are thought to only be in stasis, waiting to be awakened. Cannith artificers are eager to track them down and determine whether they can be awakened or, at the very least, salvaged for docents and other magic items. Here are locations where operational warforged colossi are rumored to dwell:

Hollow Structure

Although it can operate without a crew, a warforged colossus is built to carry wizards, artificers, magewrights, and elite troops. For this reason, these constructs are largely hollow on the inside, with tunnels, ladders, storage areas, and observation decks.

A colossus might be filled with monsters and secrets, in addition to the corpses of those who died inside it. In chapter 4, map 4.8 illustrates an inactive warforged colossus, and the text that accompanies it explains how the colossus might serve as an adventure location.