Hey fellow Diablo player! When tackling bosses in the campaign, it’s crucial to understand their mechanics. Study their attack patterns and weaknesses to plan your strategy. Make sure to have gear with resistances that counter the boss’s damage type. As for optimizing gear, focus on critical stats like critical hit chance/damage and cooldown reduction. Don’t forget to socket the right gems for additional bonuses. When leveling, prioritize main quests for big XP rewards, but don’t ignore side quests for extra loot. And always adjust your difficulty setting for a good challenge without slowing down your progress. Good luck out there!