Cast on Block — Reveal

Scaling 40 levels

Stat and cost values at each gem level. Level 20 is the highest a skill gem reaches without external modifiers.

Level	Requires Level	_% increased Energy gained
40	90	117
39	90	114
38	90	111
37	90	108
36	90	105
35	90	102
34	90	99
33	90	96
32	90	93
31	90	90
30	90	87
29	90	84
28	90	81
27	90	78
26	90	75
25	90	72
24	90	69
23	90	66
22	90	63
21	90	60
20	90	57
19	84	54
18	78	51
17	72	48
16	66	45
15	64	42
14	58	39
13	52	36
12	46	33
11	41	30
10	36	27
9	31	24
8	26	21
7	22	18
6	18	15
5	14	12
4	10	9
3	6	6
2	3	3
1	0

Effect values by quality (values round down, so a row marks each breakpoint where an effect ticks up). 20% is the normal maximum; higher quality is shown up to 100%. Rows with a ▸ expand to show finer steps.

Quality	Gains _ Energy when you Block
100%	0.25
96%	0.24
95%	0.23
92%	0.23
90%	0.22
88%	0.22
85%	0.21
84%	0.21
80%	0.2
76%	0.19
75%	0.18
72%	0.18
70%	0.17
68%	0.17
65%	0.16
64%	0.16
60%	0.15
56%	0.14
55%	0.13
52%	0.13
50%	0.12
48%	0.12
45%	0.11
44%	0.11
40%	0.1
36%	0.09
35%	0.08
32%	0.08
30%	0.07
28%	0.07
25%	0.06
24%	0.06
20%	0.05
16%	0.04
15%	0.03
12%	0.03
10%	0.02
8%	0.02
5%	0.01
4%	0.01

Recommended Supports 3

Support gems suggested for this skill, grouped by the uncut support level needed to create them — hover any card for its full tooltip.

Boundless Energy I

Support

Requires: Level (1—90), (4—157) Int

Supported Skills gain 35% increased Energy

III

Energy Retention

Support · Trigger

Requires: Level (1—90), (4—157) Int

Skills Triggered by Supported Meta Skills have 35% chance to refund half of their Energy cost

Fluke

Support · Trigger

Requires: Level (1—90), (4—157) Int

Skills Triggered by Supported Skills deal between 40% less and 60% more Damage

Skills Triggered by Supported Skills recover between 0% and 20% of cost on use

Granted by 1

Items and passives that grant this skill — hover any card for its full tooltip.

Requires: Level 45, 64 Str

Grants Skill: Raise Shield

Grants Skill: Level (1-20) Cast on Block

+(50-100) to maximum Runic Ward

(200-300)% increased Armour

Chance to Block Damage is Lucky

You take (0-20)% of damage from Blocked Hits

Level	Requires Level	_% increased Energy gained
40	90	117
39	90	114
38	90	111
37	90	108
36	90	105
35	90	102
34	90	99
33	90	96
32	90	93
31	90	90
30	90	87
29	90	84
28	90	81
27	90	78
26	90	75
25	90	72
24	90	69
23	90	66
22	90	63
21	90	60
20	90	57
19	84	54
18	78	51
17	72	48
16	66	45
15	64	42
14	58	39
13	52	36
12	46	33
11	41	30
10	36	27
9	31	24
8	26	21
7	22	18
6	18	15
5	14	12
4	10	9
3	6	6
2	3	3
1	0

Level	Requires Level	_% increased Energy gained
40	90	117
39	90	114
38	90	111
37	90	108
36	90	105
35	90	102
34	90	99
33	90	96
32	90	93
31	90	90
30	90	87
29	90	84
28	90	81
27	90	78
26	90	75
25	90	72
24	90	69
23	90	66
22	90	63
21	90	60
20	90	57
19	84	54
18	78	51
17	72	48
16	66	45
15	64	42
14	58	39
13	52	36
12	46	33
11	41	30
10	36	27
9	31	24
8	26	21
7	22	18
6	18	15
5	14	12
4	10	9
3	6	6
2	3	3
1	0

Level	Requires Level	_% increased Energy gained
40	90	117
39	90	114
38	90	111
37	90	108
36	90	105
35	90	102
34	90	99
33	90	96
32	90	93
31	90	90
30	90	87
29	90	84
28	90	81
27	90	78
26	90	75
25	90	72
24	90	69
23	90	66
22	90	63
21	90	60
20	90	57
19	84	54
18	78	51
17	72	48
16	66	45
15	64	42
14	58	39
13	52	36
12	46	33
11	41	30
10	36	27
9	31	24
8	26	21
7	22	18
6	18	15
5	14	12
4	10	9
3	6	6
2	3	3
1	0