Thousand-fold Blade

Weapon (longsword), very rare (requires attunement)

This weapon has the finesse property. You gain a +2 bonus to attack and damage rolls made with this magic weapon. While attuned to this weapon you can take the Dodge action as a bonus action. When you do so, whenever a creature misses you with an attack you may make an opportunity attack against that creature, you can do this opportunity attack a number of times equal to the sword's remaining charges a round. This weapon has 6 charges for the following properties. It regains 1d4+2 expended charges each day at dawn.

Mountain's Strike. Once per turn when you hit a creature with this weapon, you can expend 1 charge to deal an additional two damage die.

Wind's Step. As a bonus action you can expend 1 charge, in the blink of an eye you teleport up to 30 feet to an unoccupied space that you can see.

River's Blows. Once per turn when you miss an attack with this weapon, you can expend 1 charge and make two additional attacks. You don't add your ability modifier to the damage of these attacks, unless that modifier is negative, and these attacks cannot score a critical hit.

Moon's Might. When you take the attack action you can expend 1 charge. Until the end of your current turn whenever you hit a creature it must make a DC 15 Strength saving throw, on a failure it is pushed 15 feet away from you.