Alway Critical Against Adamantine and Harry

Prerequisite: Proficiency with a martial weapon, Dexterity or Strength 15 or higher

You have honed your combat skills to exploit weaknesses in both sturdy materials and specific adversaries.

Whenever you make an attack against a target wearing adamantine armor, your strikes find the chinks in the armor with uncanny precision, resulting in a critical hit on a roll of 19 or 20 on the d20.

Additionally, if your opponent's name is Harry, your focused determination in facing this adversary grants you a critical hit on a roll of 19 or 20 on the d20.

Your expertise in exploiting these vulnerabilities makes you a formidable opponent against these specific challenges.