Wolfgang is usually run as a tank. He can tank with no armor if you manage his health and mightiness transformations correctly. Usually his mightiness transformations mess up parry timing and do not provide enough benefit over other tanks like Winona or Wortox.
Becomes Mighty for 20 sec after hitting 30% HP. Must be above 60% HP to be able to trigger again.
Wolfgang is a standard tank. If you want to run him armorless make sure to heal and sleep bosses before he reverts to normal form. Final build is Blossomed Wreath, Steadfast Grand Armor, Blacksmith's Edge