This ancient looking curved blade is made of dark adamantine, but its edge is lined with deep blue gemstone. Upon attuning to the Thunder's Edge, it may grow or shrink in size to accommodate its new user's size and fighting style, taking the form of a Dagger, Scimitar, Shortsword, Longsword, or Greatsword.

When attuned to Thunder's Edge, you gain a +1 to attack and damage rolls with it. On a critical hit, the target takes an additional 2d6 Thunder damage. In addition, when you hit with a melee attack using this weapon and reduce the target to 0 hit points, you gain 2d6 temporary hit points.

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

Notes: Damage: Thunder, Bonus: Temporary Hit Points, Healing, Damage, Combat, Finesse, Light, Thrown, Nick