Source: Tal'Dorei Campaign Setting Reborn

Weapon (longbow), legendary (requires attunement)

This gorgeous longbow made of everbark from the Fey Realm flexes and shifts like a living entity. It is said to have been wielded by the legendary ranger Vex’ahlia against great evils.

Dormant. While Fenthras is in a dormant state, you gain a +1 bonus to attack and damage rolls made with this magic weapon.

When you make an attack with Fenthras , you can declare it an oracle shot, allowing you to experience the area around the arrow using your normal senses for 10 minutes. Once this property is used, it can’t be used again until you finish a short or long rest.

Additionally, when a creature is killed by an attack using this weapon, a six-foot-tall tree rapidly grows out of the corpse over the next minute. The tree is rooted in the ground to make the body difficult to move, but does not permanently damage the corpse or its organs.

Awakened. When Fenthras reaches an awakened state, you gain the following benefits:

• The weapon’s bonus to attack and damage rolls increases to +2. Additionally, when you hit with an attack using this weapon, the target takes an extra 1d4 lightning damage.
• When you hit with an attack using this weapon, you can declare it a bramble shot. The attack deals an extra 3d8 piercing damage, and the target must succeed on a DC 15 Strength saving throw or become restrained by steely brambles that burst from the arrow. A restrained target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. Once this property is used, it can’t be used again until you finish a short or long rest.

Exalted. When Fenthras reaches an exalted state, you gain the following benefits:

• The weapon’s bonus to attack and damage rolls increases to +3.
• The extra lightning damage dealt by attacks using the bow increases to 1d6.
• You can declare a bramble shot twice between rests, and the saving throw DC increases to 17