Hey there fellow Diablo player! When it comes to skills, it’s all about finding the right balance between offense and defense. For defeating bosses, focus on high damage-dealing skills like Meteor or Wave of Light, combined with crowd control skills like Frost Nova or Blinding Flash to keep the boss at bay.

When optimizing gear, make sure to prioritize gear that boosts your main damage-dealing skill. Look out for bonuses to skill damage, cooldown reduction, and resource cost reduction to maximize your effectiveness in combat.

For efficient leveling, consider using AoE (Area of Effect) skills that can clear out groups of enemies quickly. Skills like Multishot for Demon Hunters or Whirlwind for Barbarians are great for this purpose. Also, don’t forget to regularly upgrade your skills as you level up to keep pace with the increasing difficulty of enemies.

Remember, experimentation is key! Don’t be afraid to try out different skill combinations to find what works best for your playstyle. Good luck out