FoeCleaver - Greatsword Sun Blade
Sun Blade (rare) Though the DMG says long sword, this is a Great Sword.
This item appears to be a great sword hilt. While grasping the hilt, you can use a bonus action to cause a blade of pure radiance to spring into existence, or make the blade disappear. While the blade exists, this magic longsword has the finesse property. If you are proficient with shortswords or longswords, you are proficient with the sun blade. If it takes the form of a greatsword, it is a strength based weapon.
You gain a +2 bonus to attack and damage rolls made with this weapon, which deals radiant damage instead of slashing damage. When you hit an undead with it, that target takes an extra 1d8 radiant damage. The sword’s luminous blade emits bright light in a 15-foot radius and dim light for an additional 15 feet. The light is sunlight. While the blade persists, you can use an action to expand or reduce its radius of bright and dim light by 5 feet each, to a maximum of 30 feet each or a minimum of 10 feet each.
Minor Property: Song Craft (Whenever the sword strikes a foe, its bearer hears a fragment from an ancient song.)
Quirk: Confident (The item helps the bearer feel self-assured.)
Feng Ironhead used this item on his adventures but now has little use for it in Red Larch. After witnessing Quintus’ heroic work in saving the villagers from the earth cult earthquakes caused by the devastation orb, Feng allowed Quintus to trade his Greatsword+1 and gold coins for FoeCleaver.