Dark Orb

Level	Damage per second	Ability damage	Slows for (s)	Slows by (%)	Upgrade cost	Blacksmith	Town Hall
1	10	45	8	20	–	1	8
2	13	45	8	20	120	1	8
3	18	55	9	25	24020	1	8
4	21	55	9	25	400	1	8
5	24	55	9	25	600	1	8
6	29	65	10	30	840100	1	8
7	32	65	10	30	1,120	1	8
8	35	65	10	30	1,440	1	8
9	40	75	11	35	1,800200	1	8
10	43	75	11	35	1,900	3	10
11	46	75	11	35	2,000	3	10
12	51	100	13	40	2,100400	3	10
13	54	100	13	40	2,200	5	12
14	57	100	13	40	2,300	5	12
15	62	150	15	45	2,400600	5	12
16	65	150	15	45	2,500	7	14
17	68	150	15	45	2,600	7	14
18Max at TH18	73	200	18	50	2,700600	7	14

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