Weapon

Legendary Requires Attunment by a creature with a Strength score of 21 or more Requires Attunement

You gain a +3 bonus to attack and damage rolls made with this great sword. This sword has 12 charges. The sword regains 1d8 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the sword casts Flesh to Stone on the wielder (DC 18, without concentraition). On a 20, the sword regains 1d4 + 2 charges.   Siege Monster. Attacks with this weapon deal double damage to objects and structures.   Stone Blade. When you hit with this weapon it deals an additional 2d6 bludgeoning damage (this damage adjusts to be the same number of dice as the base slashing damage). Additionally on a critical hit you can push the target up to 20ft away from you.   Reach. This weapon adds 5 feet to your reach when you attack with it, as well as when determining your reach for opportunity attacks with it.   Earthen Spells. While holding this sword, you can use an action to expend 1 or more of its charges to cast one of the following spells from it, with a spell save DC of 18: Wall of Sand (3 charges), Wall of Stone (5 charges), Bones of the Earth (6 charges), Investiture of Stone (6 charges), Move Earth (6 charges) and Earthquake (8 charges).   Armour of Rock. As a bonus action you can expend up to 4 charges to surround yourself with magical rock that covers you and your gear. You gain 10 temporary hit points per charge. If a creature hits you with a melee attack while you have these hit points, the creature takes 5 magical bludgeoning damage. These temporary hit points last until you finish a long rest.   Last Stand. If you would drop to 0 hit points you can use your reaction to instead drop to 1 hit point and cast Invulnerability on yourself. Once this ability has been used it can't be used for 1 year.

A giant stone great sword which can shift and reform to permit it's movement in smaller spaces.

It's length adjusts to be equal to the height of the wielder, it's width is a 10th of their height and it's depth is a 50th their height. If it is not attuned to a creature it is 5'8, 7 inches wide and 1 deep.

When moved it can divide into minuscule pieces and float to avoid obstacles before reforming, this is not so dexterous as to avoid shields, swords or cover. It's only mechanical effect is that it isn't effected by cramped spaces.

Cost: 200,000
Weight: Equal to 2/3 of it's height in lbs or 45 lbs if Unattuned