Bonestorm

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Gem level progression

Level			Mana Cost
1	0	0	355
2	3	9	420
3	6	14	491
4	10	21	571
5	14	28	658
6	18	35	754
7	22	41	861
8	26	48	977
9	31	57	1106
10	36	65	1246
11	41	74	1401
12	46	82	1570
13	52	92	1755
14	58	103	1958
15	64	113	2180
16	66	116	2422
17	72	126	2687
18	78	137	2976
19	84	147	3291
20	90	157	3634

Recommended support gems

The following support gems are recommendations by GGG as listed in-game, and do not necessarily reflect optimal combinations or the views of the wiki.

Gem tier	Support gems

Item acquisition

Bonestorm has restrictions on where or how it can drop.

It can be obtained by engraving an Uncut Skill Gem.

Alternate skill effects

Bonestorm has the following alternate skill effects:

Item	Description

Version history

Version	Changes
0.1.0e	Increased the damage growth per level on Unearth (non-Minion component), Bonestorm, Bone Cage, Bone Blast (Wand Skill) and Power Siphon (Wand Skill). Results in approximately 50% more damage at Gem Level 25.
0.1.0d	Updated the suggested Supports for Bonestorm.
0.1.0	Introduced to the game.