Lvl	Atk	Chance	FP	Duration (Secs)
1	35-36	10%	55	9
2	35-36	12%	55	9
3	36-37	14%	57	9
4	36-37	16%	57	9
5	37-38	18%	60	9
6	37-38	20%	60	9
7	38-39	22%	62	9
8	38-39	24%	62	9
9	39-40	26%	64	9
10	39-40	28%	64	9
11	40-41	30%	66	12
12	40-41	32%	66	12
13	41-42	34%	68	12
14	41-42	36%	68	12
15	42-43	38%	70	12
16	42-43	40%	70	12
17	43-44	42%	75	12
18	43-44	44%	75	12
19	44-45	46%	80	12
20	44-45	48%	80	12

Swinging the yoyo wildly which will cause bleeding.