Vorpal Sword

Weapon (Glaive, Greatsword, Longsword, or Scimitar), Legendary (Requires Attunement)

• Attack and Damage Bonus: You gain a +3 bonus to attack rolls and damage rolls made with this magic weapon.
• Resistance Ignorance: The weapon ignores Resistance to Slashing damage.
• Decapitation: When you use this weapon to attack a creature that has at least one head and roll a 20 on the d20 for the attack roll, you cut off one of the creature’s heads. The creature dies if it can’t survive without the lost head. A creature is immune to this effect if it has Immunity to Slashing damage, doesn’t have or need a head, or if the GM decides the creature is too large for its head to be severed by this weapon. Such a creature instead takes an extra 30 Slashing damage from the hit. If the creature has Legendary Resistance, it can expend one use of that trait to avoid losing its head and instead take the extra damage.