Rage Gem

Level	Damage per second	Spell level	Upgrade cost	Blacksmith	Town Hall
1	12	1	–	4	11
2	14	1	120	4	11
3	16	2	24020	4	11
4	18	2	400	4	11
5	20	2	600	4	11
6	22	3	840100	4	11
7	24	3	1,120	4	11
8	26	3	1,440	4	11
9	30	4	1,800200	4	11
10	36	4	1,900	4	11
11	43	4	2,000	4	11
12	49	5	2,100400	4	11
13	56	5	2,200	5	12
14	62	5	2,300	5	12
15	69	6	2,400600	5	12
16	75	6	2,500	7	14
17	82	6	2,600	7	14
18Max at TH18	88	7	2,700600	7	14

From level 1: 27.3K shiny ore, 1.9K glowy ore to max at Town Hall 18.