Ark Flame

this sword is an ancient silver and black weapon forged by the fey. this weapon pulsates with primal energy and light. In legend it is called tieranys favor forged by a fey as a favor to an elf for their help in a quest of large importance.

when using this weapon you gain multi-attack 3 times and a plus 1d4 radiant damage from pearl white fire on all attacks with the blade. 

Attack final hit: on your final hit you hit with a massive wave of force and energy. you consume a charge and you can hit one more time in that turn that deals an extra 1d12 force damage and launches the creature 10 ft in a forward direction you chose, if the creature hits an object the object will be badly damaged and the creature will take 1d6 bludgeoning damage.

curse: if you are holding the weapon while attuned to a evil god or do a evil deed, you will burn up in pearl white flames in pain and agony

The double-bladed scimitar is the signature weapon of Valenar elves. A haft of fine wood supports a long, curving blade on either end. Forged with techniques honed over centuries, these blades are strong, sharp, and remarkably light. Each scimitar is a masterpiece, and as a result the double-bladed scimitar is an expensive weapon (100 gp) — few though ever have the opportunity to purchase one. A Valenar blade in the hands of a non-elf is generally assumed to have been stolen or looted from a fallen foe, and a Valenar elf might feel entitled to demand its return or challenge the bearer to prove they’re worthy to wield it.

Special. If you attack with a double-bladed scimitar as part of the Attack action on your turn, you can use a bonus action immediately after to make a melee attack with it. This attack deals 1d4 slashing damage on a hit, instead of 2d4.

Notes: to attune to this item you must follow a chaotic good god, Special, Two-Handed