What is def cap wotlk?

The defense cap in World of Warcraft: Wrath of the Lich King (WotLK) is the maximum number of defense rating a tank character needs to reach to avoid incoming physical attacks from bosses and mobs. In WotLK, the defense cap is 540, which means that a tank character needs to have at least 540 defense rating to become immune to critical strikes from level 83 mobs and bosses.

Reaching the defense cap was crucial for tank characters in WotLK as it provided them with maximum damage mitigation and reduced the risk of being killed in raids or dungeons. Tank classes such as Warriors, Paladins, and Death Knights needed to prioritize defense rating while gearing up to ensure that they reached the defense cap.

In addition to defense rating, tank characters also needed to have a sufficient amount of armor, stamina, and avoidance stats to complement their defense rating and maintain survivability. Overall, reaching the defense cap was an essential part of maximizing tanking performance in WotLK.