Giant Arrow

Level	Damage per second	Ability damage	Upgrade cost	Blacksmith	Town Hall
1	20	750	–	2	9
2	23	750	120	2	9
3	27	850	24020	2	9
4	30	850	400	2	9
5	33	850	600	2	9
6	37	1,000	840100	2	9
7	40	1,000	1,120	2	9
8	43	1,000	1,440	2	9
9	50	1,100	1,800200	2	9
10	59	1,100	1,900	3	10
11	68	1,100	2,000	3	10
12	77	1,200	2,100400	3	10
13	86	1,200	2,200	5	12
14	96	1,200	2,300	5	12
15	105	1,350	2,400600	5	12
16	114	1,350	2,500	7	14
17	123	1,350	2,600	7	14
18Max at TH18	132	1,500	2,700600	7	14

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