Terra Blade

Terra Blade
Weapon (Greatsword), Legendary

This emerald green sword is forged with the power of the earth.
You have a +3 bonus to attack and damage rolls with this weapon. When you hit a creature, you can force it to succeed on a DC 17 Strength saving throw or be pushed back by up to 10 feet.

In addition, it has 6 charges. When you make an attack with the Terra Blade, you can expend a charge and fire a beam from the sword instead of making a melee attack. The beam has a range of 80 feet, and all bonuses to attack and damage still apply; however, the damage type is Force instead of Slashing.