Acwindel

Weapon Finesse Varies (this item requires attunement) [Transmutation]

This beautiful 10-Ring Sword seems to have been crafted seamlessly from a single emerald, and nearly pulses with magical energy. While unsheathed, Acwindel wooshes dramatically as it moves and glimmers in even the sparsest light. These effects continue even when sheathed unless the sheath itself is a work of master craftsmanship visibly worth at least 1000gp. When you look closely at the blade, you see the shapes of a curtain of vines running down the center of the sword, from tip to pommel. These vines all seem to emanate from a ball of roots within the crossguard. On closer inspection, the vines seem to be shifting and moving within the sword.   When found, Acwindel has only one of its rings. Much like the rest of the sword, the ring seems to be crafted from a single gem, with no discernable cracks or openings. How it came to be on looped onto the sword is a question for the scholars.   With each ring that is recovered, Acwindel, and her wielder, gain powers, which are listed below.   Acwindel functions as a magical Longsword, and gains a bonus to attack and damage rolls equal to the number of reclaimed rings. In addition, Acwindel counts as Magical for the purposes of overcoming Resistance to non-magical weapons.   Blade of Heroes: Acwindel is not designed for subtlety. While unsheathed, it whirrs and wooshes loudly, granting disadvantage on Stealth checks. It is guaranteed to draw attention to itself in nearly any situation unless it is sheathed.   Call to Adventure: While wielding Acwindel, your speed increases by 30ft as winds push you onward. This ability ceases to function if you are attempting to escape.  

First Ring

  Champion Slayer: As a bonus action, you may run on the wind at a blinding speed, travelling up to 30ft in an instant without provoking opportunity attacks. This does not have to be in a straight line. As part of this movement, you may make one attack with Acwindel against a creature that is within 5ft of your path. This attack ignores resistance to Slashing damage.   Once you use this ability, you cannot use it again until you finish a Short Rest.  

Second Ring

  Fall of the Proud: As an action, you may expend one use of Champion Slayer to strike at flying foes. As part of this action, you can jump 10ft vertically (or 20ft horizontally) for each ring on Acwindel, and make one attack on an enemy who is within 5ft of you at any point in the jump.   If your attack hits and this enemy is flying, then they must make a saving throw appropriate to their method of flight (i.e. Dexterity for winged flight, Intelligence for magical flight, etc.) as determined by the GM.   If they fail, then they are rocketed back toward the earth and take 1d6 damage for every 10ft they fall. If they fail by 5 or more, then they are also knocked prone. If they succeed, they lose half of their altitude before catching themselves.   The target gains advantage on the saving throw for each size category they are larger than you by.  

Third Ring

Unstoppable Fate: when you drop to 0 HP, you do not fall unconscious (unless you want to). Instead you become Staggered. You must still make death saves at the end of each of your turns (and you have a -1 to the death save if you use a violent action during your turn), and whenever you would take damage you fail 2 death saves as normal.   Other abilities will be revealed as you find more rings...

Cost: Pri Weight: 2lbs.