If you've been yearning to play the all-powerful Bone Spear Necromancer that can one-shot The Butcher in Diablo 4, you're in luck! In this comprehensive guide, we'll walk you through the step-by-step process of leveling a Bone Spear Necromancer. We'll cover the essential skills, their usage, the rotation, and where to find crucial aspects early on to make your build incredibly overpowered during the leveling process. 

• About Bone Spear skill
• Level 1-10: Early Dungeon Crawling and Aspects
• Level 2-5: Mastering Bone Splinters and Bone Spear
• Level 6-10: Fine-tuning the Bone Spear Build
• Level 11-20: Immunity and Increased Damage
• Level 21-30: Aspect of Iron Maiden and Amplified Damage
• Level 31-40: Aspect of Amplified Damage and Corpse Generation
• Level 41-50: Aspect of Ossified Essence and Renown Points

↖ About Bone Spear skill

Bone Spear is a potent skill in Diablo 4 available to the Necromancer class. It allows Necromancers to summon a Bone Spear from the ground, dealing damage and piercing through enemies. The skill costs 25 Essence and can be ranked up to Rank 5. By enhancing Bone Spear, it breaks into three shards when destroyed, each dealing 25% damage. 

Upgrade benefits of Bone Spear

↖ Level 1-10: Early Dungeon Crawling and Aspects

As soon as you arrive at KyovaShot, head east to the Black Asylum, a level one dungeon. Clear it to obtain the Aspect of Torment, which grants early Essence regeneration when using Bone Spear. Next, head southwest of Kyovasha to the Corrupted Grotto, another level one dungeon. Here, you'll find the Aspect of Grasping Veins, offering unbelievable crit chance and damage for your Bone Spear. Lastly, don't miss the Gulron Slums, where you can obtain the Aspect of Vulnerability, causing your Bone Spear to deal extra damage to vulnerable enemies and pierce through them.

↖ Level 2-5: Mastering Bone Splinters and Bone Spear

At level two, pick up Bone Splinters, a powerful basic skill that deals high damage and helps generate Essence. Enhance it at level three to fire two additional projectiles when casting with 50 or more Essence. At level four, you'll unlock the powerhouse of your build, Bone Spear, a low-cost skill dealing massive damage in a line, piercing through enemies. Level five brings Enhanced Bone Spear, allowing Bone Spear to break into three shards when destroyed, dealing additional damage.

↖ Level 6-10: Fine-tuning the Bone Spear Build

At level six, invest in Paranormal Bone Spear, providing a 5% increased Critical Strike chance and firing two additional bone shards when critting. Continue pumping points into Bone Spear from level 7 to 10 to maximize its damage potential.

↖ Level 11-20: Immunity and Increased Damage

Level 11 brings Blood Mist, granting immunity and generating corpses for Corpse Tendrils. Level 12 boosts your maximum Essence by three with Unliving Energy, while level 13 introduces Iron Maiden, a curse that makes enemies take damage every time they deal direct damage.

↖ Level 21-30: Aspect of Iron Maiden and Amplified Damage

At level 14, enhance Iron Maiden to no longer cost Essence and instead grant you five Essence for each cursed enemy. Level 15 brings Abhorrent Iron Maiden, providing life yield for each cursed enemy killed. Max out Unliving Energy from level 16 to 17 for increased maximum Essence.

↖ Level 31-40: Aspect of Amplified Damage and Corpse Generation

From level 31 to 33, put three points into Amplified Damage, which increases damage taken by cursed enemies. At level 34, invest in Grim Harvest, generating two Essence when consuming corpses.

↖ Level 41-50: Aspect of Ossified Essence and Renown Points

From level 41 to 44, put points into Death's Reach and reduce Bone Skill cooldown with Rapid Ossification at level 45. From level 48, start investing in Renown Points to enhance your Bone Spear Necromancer further.

Conclusion:

Congratulations, you now have a powerful Bone Spear Necromancer ready to wreak havoc in Diablo 4! Remember to follow the rotation and use your skills wisely for optimal results. As you progress, sacrifice your minions to gain additional benefits, and don't forget to distribute your Renown Points to maximize your damage and survivability. We hope this guide has been helpful on your journey to defeat Lilith and save Sanctuary.