The Iron Sentinel

In the twilight years of the Old Collective, when humanity's greatest minds still believed they could harness the power of dying stars, Dr. Elara Voss led a desperate expedition to the frozen wastes of Kessler Station to retrieve a fragment of stellar matter—a remnant of a white dwarf that had fallen to the planet's surface millennia ago. Unable to contain such cosmic fury in conventional vessels, Voss and her team constructed an unprecedented chassis: a towering amalgamation of repurposed industrial machinery, reactor housings, and hydraulic limbs salvaged from the planet's abandoned mining colonies. When they finally encased the stellar fragment within its core, The Iron Sentinel awakened not as a tool but as something far more—a being of pure, concentrated rage born from the agony of a dying star compressed into mechanical flesh. For three decades it served as the Collective's ultimate deterrent, a walking apocalypse that could level entire fortifications with a single sweep of its massive hands, until the regime fell and the Sentinel was sealed away in the deepest vault of this forsaken facility. Now, as the vault's systems fail and the temperature in its containment chamber begins to rise, the faint tremor of its reawakening echoes through the corridors—a sound that promises the end of whatever world has dared to exist in its slumber.

Strength

30, modifier 10

Dexterity

10, modifier 0

Constitution

20, modifier 5

Intelligence

3, modifier -4

Wisdom

10, modifier 0

Charisma

1, modifier -5

Crushing Grasp

Melee Attack: +10 to hit, reach 15 ft., one target. Hit: 4d12 + 10 bludgeoning damage.

Seismic Slam

The Iron Sentinel slams the ground, creating a shockwave. All creatures within 30 ft. must make a DC 20 Dexterity saving throw, taking 6d10 bludgeoning damage on a failed save, or half as much on a success.

Radiant Eruption

The core of the Sentinel erupts with stellar energy. All creatures within 20 ft. must make a DC 22 Constitution saving throw, taking 8d8 radiant damage on a failed save, or half as much on a success.

Reactor Overload

As a last resort, the Sentinel can overload its core. All creatures within 60 ft. take 10d10 fire damage and must succeed on a DC 22 Constitution saving throw or be stunned until the end of their next turn.

Imposing Presence

Enemies within 30 feet have disadvantage on saving throws against fear effects.

Unyielding Frame

The Iron Sentinel has advantage on saving throws against being grappled or restrained.

strength

10

dexterity

0

constitution

10

intelligence

-4

wisdom

0

charisma

-5

Bludgeoning

Piercing

Slashing