Stormbringer

Long before the Stark family ruled over Northernia, the Bleu royal family ruled as Kings of the Sea. They ruled as powerful sorcerers, expert swordsmen, and unrivaled masters of naval travel. Centuries before the walls were erected, the Bleu family fought a war against the invading Starks and their army of lycanthropes. While they were unmatched by naval battle, they were unable to kill the lycanthropes and lost the war. They surrendered to the Starks and kept their house intact, though the shame drove the former king mad. His wife, Queen Saphir, committed suicide with his blade Stormbringer to bind her soul to the blade.

In life, she was a beauty to behold. Unlike most of her kingdom, who had tan skin and darker hair, Saphir Bleu was born of the rare flaxen hair, and was desired by all men and woman. She was nearly as intelligent and wise as she was beautiful; she used her charm and wits to meet and marry the young King Bleu. Her reign as queen, however, did not last long. A decade into her rule, she and her husband were overthrown by the Starks. She grew a deep seated hatred for the Starks and all lycanthropes. She stayed locked within the blade until Riviere took the blade to Wimbell and released her from Stormbringer, returning her to physical form.

With Queen Saphir released from Stormbringer, the sword revered back to an Ancestral Weapon, a type of weapon that grows stronger over time, and can only attune to those past down from the Bleu family line.

Abilities
Stormbringer is an Ancestral Weapon. This weapon gains Spirit Points equal to the level of the character attuned to this weapon. Spirit Points can be purchased to gain upgrades to the weapon.

Enhanced Weapon Level 3
10 Spirit points, limited

You have a +3 bonus to attack and damage rolls made with this weapon.

Infusion Level 2
10 Spirit points, limited

When you select this upgrade, choose a damage type from acid, cold, fire, force, lightning, necrotic, poison, psychic, radiant, and thunder. Your weapon attacks from this weapon deal an additional 2d6 damage of that type.

Quick
1 Spirit point

You have advantage on initiative rolls.

Scout
2 Spirit points

You have advantage on attacks with this weapon in the first round of combat.