Hey there, fellow Diablo player! When tackling bosses in the campaign, it’s crucial to understand their mechanics. Make sure to stock up on potions and have a variety of skills at your disposal to adapt to different boss strategies. For optimizing gear, focus on stats that complement your build and don’t forget about socketing gems for added bonuses. When it comes to leveling efficiently, consider running bounties and rifts for experience. Don’t be afraid to adjust your playstyle and gear as you progress through the campaign for maximum effectiveness. Happy hunting!