Bonechill Support

Bonechill Support is a support gem that grants the supported skill more cold damage and increased chill effect. Enemies also take increased cold damage from all sources based on the magnitude of the chill effect applied by the skill.

Skill functions and interactions

The chill must be caused by a skill, regardless of whether the cold damage originates from a piece of gear, or the skill gem itself. If the enemy is affected by multiple sources of chill, (for example, both hits and creates a chilling area) only the strongest chill magnitude will be taken into account. Notably, sources of chill such as will not provide a damage bonus, since a flask is not a skill (thus cannot be linked to support gems).

Chill, and therefore the effect of Bonechill, is capped at 30%. A chill that reduces Action Speed by 14% will cause the enemy to take 14% increased Cold Damage. Since freeze is considered a separate ailment, it will not impart any additional damage bonus.

Similarly to and , Bonechill does not need to be linked to the player's main skill to apply its "increased damage taken" effects. This means that Bonechill can be applied by a secondary utility skill that activates on (such as or ), while the player's main skill uses a more powerful gem such as .

Gem level progression

Level				Chill Effect	Chilled increased Cold DoT	Chill area increased Cold DoT	Exp.	Total Exp.
1	38	27	40	25%	10%	10%	0	0
2	40	29	41	26%	11%	11%	388734	388734
3	42	30	43	27%	12%	12%	477437	866171
4	44	31	45	28%	13%	13%	583786	1449957
5	46	33	47	29%	14%	14%	710359	2160316
6	48	34	49	30%	15%	15%	1355511	3515827
7	50	35	51	31%	16%	16%	1138877	4654704
8	52	37	53	32%	17%	17%	1368233	6022937
9	54	38	55	33%	18%	18%	1638338	7661275
10	56	39	57	34%	19%	19%	1956648	9617923
11	58	41	58	35%	20%	20%	3655184	13273107
12	60	42	60	36%	21%	21%	3017327	16290434
13	62	43	62	37%	22%	22%	3576232	19866666
14	64	44	64	38%	23%	23%	4231667	24098333
15	65	45	65	39%	24%	24%	2395078	26493411
16	66	46	66	40%	25%	25%	8421063	34914474
17	67	46	67	41%	26%	26%	16159983	51074457
18	68	47	68	42%	27%	27%	41170367	92244824
19	69	48	69	43%	28%	28%	86794448	179039272
20	70	48	70	44%	29%	29%	157405063	336444335
21	72	50	72	45%	30%	30%	N/A	N/A
22	74	N/A	N/A	46%	31%	31%	N/A	N/A
23	76	N/A	N/A	47%	32%	32%	N/A	N/A
24	78	N/A	N/A	48%	33%	33%	N/A	N/A
25	80	N/A	N/A	49%	34%	34%	N/A	N/A
26	82	N/A	N/A	50%	35%	35%	N/A	N/A
27	84	N/A	N/A	51%	36%	36%	N/A	N/A
28	86	N/A	N/A	52%	37%	37%	N/A	N/A
29	88	N/A	N/A	53%	38%	38%	N/A	N/A
30	90	N/A	N/A	54%	39%	39%	N/A	N/A
31	91	N/A	N/A	55%	40%	40%	N/A	N/A
32	92	N/A	N/A	56%	41%	41%	N/A	N/A
33	93	N/A	N/A	57%	42%	42%	N/A	N/A
34	94	N/A	N/A	58%	43%	43%	N/A	N/A
35	95	N/A	N/A	59%	44%	44%	N/A	N/A
36	96	N/A	N/A	60%	45%	45%	N/A	N/A
37	97	N/A	N/A	61%	46%	46%	N/A	N/A
38	98	N/A	N/A	62%	47%	47%	N/A	N/A
39	99	N/A	N/A	63%	48%	48%	N/A	N/A
40	100	N/A	N/A	64%	49%	49%	N/A	N/A

Related unique items

The following unique items are related to Bonechill Support:

Version history

Version	Changes
3.15.0	Now has a 140% Cost and Reservation Multiplier (previously 120%). No longer has “Enemies Chilled by Supported Skills take 10-29% increased Cold Damage over Time” or “Enemies in Chilling Areas from Supported Skills take 10-29% increased Cold Damage over Time”. Now has “Supported Skills deal 5-14% more Cold Damage”.
3.5.0	Bonechill Support has been added to the game.