Astillado

Astillado is a black metal bat with white cloth tape wrapped around the handle. It has a lightning bolt, a drum, and a fire carved around the handle.

You have a +4 bonus to attack and damage rolls made with this magic weapon. Additionally, this weapon has 10 charges, and regains every expended charge after a short rest. As a free action, one charge can be used to cause one of the following effects;
The weapon gets coated in fire, dealing an additional 4d4 fire damage. Additionally, the target must make a Constitution saving throw, DC = 8 + the attuned user's Proficiency Bonus + Their Strength or Dexterity, or be lit on fire, dealing 4d4 fire damage on each subsequent turn for 2d4 + the attuned user's Proficiency Bonus.
The weapon begins to resonate, dealing an additional 4d4 thunder damage. Additionally, the target must make a Strength saving throw, or be flung 30 feet and knocked prone. on a success, the target is flung, but remains on their feet.
The weapon glows bright, dealing 2d4 force damage, and 2d4 radiant damage. Additionally, the target begins to glow unnaturally, as if under the effects of faerie fire.

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Damage: Fire, Damage: Thunder, Damage: Force, Damage: Radiant, As a free action, one charge can be used to cause one of the following effects; The weapon gets coated in fire, dealing an additional 4d4 fire damage. Additionally, the target must make a Constitution saving throw, DC = 8 + the attuned user's Proficiency Bonus + Their Strength or Dexterity, or be lit on fire, dealing 4d4 fire damage on each subsequent turn for 2d4 + the attuned user's Proficiency Bonus. The weapon begins to resonate, dealing an additional 4d4 thunder damage. Additionally, the target must make a Strength saving throw, or be flung 30 feet and knocked prone. on a success, the target is flung, but remains on their feet. The weapon glows bright, dealing 2d4 force damage, and 2d4 radiant damage. Additionally, the target begins to glow unnaturally, as if under the effects of [spell] faerie fire [/spell]., Damage, Combat, Versatile, Sap