Weapon

Legendary Requires Attunement

This sentient weapon has three states of awareness. When found and first attuned to, it begins at Dormant.   Dormant:

• +1 shifting sword (Sanguine starts in the form of a Dual Broadsword, but will shift into a blade the user is most comfortable with)
• 1d6 necrotic damage in addition to weapon damage.
• Allows the one attuned to Sanguine to cast vampiric touch at third level. Once this feature is used, it cannot be used again until the following dusk.
• If any other than the attuned attempt to pick up sanguine they must make a DC 17 con check, taking 5d6 piercing damage as blood forms spikes in the hilt, causing them to drop the blade. On a success they take half damage and can hold on. The save is repeated each round until the sword is free released.
• Keep track of kills the blade makes (this feature does not count for creatures who do not have blood)

Awakened: Sanguine reaches awakened upon either feasting upon 100 enemies, or personal growth/bonding of the attuned (Role playing beats)  

• +2
• Necrotic damage upgrades to 2d6
• A relic from a world lost to fire, Sanguine has drank deep in its many centuries of existence, though it ever thirsts for more. Instead of making your normal attack action, you can have Sanguine launch three blood spikes at your enemies. Roll to hit for each of them, using your Dex modifier +3 as an attack bonus. The spikes deal 1d8 +3 magical piercing damage on a hit. Roll a D6 afterwards. This ability reacharges on a 6.

Exalted: Sanguine reached exalted upon reaching 1,000 kills (or with the Attuned completing a quest for Sanguine, depending on DM's decision)

• +3
• Necrotic upgrades to 2d8
• Vampiric Touch upgrades to level 5
• Two extra spikes are launched.
• Bloodstorm: As an action, you can have Sanguine unleash a portion of the vitae he has stored, created a storm of blood in a 30ft sphere centered around you. Enemies within the sphere when it first forms must make a DC 18 Dex save or take 4d6 Necrotic damage, and half as much on a successful save. This save must be repeated every turn they start in the storm there after. The storm counts as difficult terrain and heavily obscured, and lasts for a minute. Once this feature is used, it cannot be used again for 3d10+4 days.

Sanguine is a sentient weapon, brought to Arafel from another world alongside the Shadowborn exodus. But Sanguine's story began long before that.

Sanguine was once a living being, belong to a religious order of warriors who venrated the aspect of Wrath, a subsect of the Church of Shadow. In life, he had forgone his name to join the order, using a form of hemocraft to empower his rages. Over time his thirst for blood started to become all consuming, and he threw himself into the midst of battle without any care for his well being, or for those around him as long as he was bathed in the vitae of his foes. Such recklessness would eventually lead to his downfall. At the second siege for Umbra, though his efforst aided in repelling those that would invade those ancient walls, he was laid low at last. But death did not grant his soul peace.

Finding himself adrift in the well of souls, his rage and anger abated now, he found himself still with an unending thirst, one that was near consuming. When the Soul Smiths of Umbra sought a new soul to imbue into a blade, Sanguine was quick to offer himself to their works, and was imbued into a blade, turning it a deep crimson, from whence his name came. Paired with another blade, named Mortis, the two were unused for many years, until coming into possession of the Last Lord of Umbra, and served him for many centuries until the great exodus.

With the death of his world, and the Sundering of Arafel, the Last Lord of Umbra found himself a broken man, and sealed his blades away, binding shadow demons to watch over them and prevent the unworthy from wielding them. In time, Sanguine was rescued from his captivity by hired mercanaries, and sold to a merchant. Now, he finds himself bonded to D.E.C.o.Y., another soul bonded to a form that was not originally there's. Time will tell how deep their bond with go.