Source: Wayfinder's Guide to Eberron

Prerequisite: Elf

You are descended from a master of the double blade and their skills have passed on to you. You gain the following benefits:

  • Increase your Dexterity or Strength score by 1, to a maximum of 20.
  • While wielding a double-bladed weapon with two hands, the weapon has the finesse trait for your attacks with it, and you gain +1 AC.
  • On your turn, when you use a bonus action to make a melee attack with the blade at the opposite end of the weapon, the weapon's damage die for this attack increases to 2d4, instead of 1d4.