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Bone Offering

Impale a Skeleton on a bone spike to shield your Minions while the spike remains, reducing the amount of damage taken from Hits. Taking a Hit that deals damage above a certain threshold will cause that Minion's shield to absorb all damage from that Hit, then explode. The bone spike is itself a Minion, and shields itself. If it dies, shields on your other Minions disappear.

MinionBuffAoEPhysicalDuration
Tier
A

Very solid choice with strong damage or utility for most builds.

Cost
25 mana
Cast Time
0.6s
Crit Chance
Max Level
20
Cooldown
None

Gem Effects

Limit 1 Bone Offering Spike

Spike duration is 8 seconds

Minions take (15-25)% reduced damage from Hits while shielded

Absorbs first Hit dealing over 25% of Minion's maximum life

Requirements

Primary:intelligence
At Level 20:157 Intelligence

Best Support Gems for Bone Offering

Ranked by synergy — the game won't tell you which combo deals the most damage

How to Use Bone Offering Effectively

Practical tips you won't find on the tooltip

🌊

AoE Clearing

Invest in Area of Effect to cover more ground. Excellent for map clearing and handling packs efficiently.

👻

Minion Scaling

Minions scale from specific gem/gear sources, not your own damage. Stack minion damage, life, and speed.

Duration Matters

Duration scaling extends effect uptime. Less recasting = more time dealing damage. Invest in skill duration passives.

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Attribute Planning

Requires 157 Int at max level. Plan your passive tree and gear to meet this — don't get stuck unable to level your main skill.

Alternatives to Bone Offering

Similar skills — which one fits your build better?

How to Get Bone Offering

Source
Uncut Skill Gem
Vendor
Gem vendor after quest
Max Level
20
Resource
mana

Use an Uncut Skill Gem to obtain Bone Offering. These drop from enemies or can be purchased from the gem vendor once unlocked through the campaign.