Sergio Rick Ruben The Iron Jackal

Born in Aarhus to visionary parents who nurtured his fascination with nanotechnology and cybernetics, Sergio Rick Ruben dedicated his early years to mastering the intersection of machine and biology, particularly inspired by the cunning nature of jackals. His ambitious dream was to create life-saving cybernetic suits that would allow humanity to survive environmental catastrophe and purify a dying world, yet the very institutions and colleagues he sought validation from rejected his revolutionary work as too dangerous and impractical. Consumed by rejection and fueled by wounded pride, Sergio abandoned his humanitarian vision and instead channeled his genius into forging the Iron Jackal—a devastating cybernetic exoskeleton that transformed him into a predatory force of vengeance against those who had spurned him. Standing nearly eight and a half feet tall within his gleaming armor, he became a scourge upon the streets of his hometown, orchestrating acts of terror and destruction that were meant to prove his superiority and make the world regret dismissing him. His rampage continued unchecked until the legendary Mighty Bull intervened, finally subduing the rogue inventor and bringing him to justice. Now imprisoned, Sergio Rick Ruben has earned a sinister reputation as one of history's most formidable cybernetic criminals, a cautionary tale of brilliance corrupted by bitterness.

Strength

20, modifier 5

Dexterity

16, modifier 3

Constitution

20, modifier 5

Intelligence

18, modifier 4

Wisdom

14, modifier 2

Charisma

12, modifier 1

Cybernetic Strike

Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 3d10 + 5 slashing damage.

Jackal's Howl

All creatures within 30 ft. must succeed on a DC 17 Wisdom saving throw or be frightened until the end of their next turn.

Nano Shield

As a reaction, gain +5 AC until the start of your next turn. Can be used once per short rest.

Predatory Charge

Move up to 30 ft. in a straight line and make a Cybernetic Strike against each creature in your path.

Terror of the Iron Jackal

Once per day, create an area of fear in a 20 ft. radius for 1 minute. Creatures must succeed on a DC 17 Wisdom saving throw or be frightened.

Cybernetic Resilience

Advantage on saving throws against being poisoned or paralyzed.

Jackal's Instinct

Can sense nearby creatures within 60 feet, even if hidden.

strength

9

dexterity

7

intelligence

8

constitution

9

Poison

Psychic