> print(attack_summary)
# A tibble: 16 x 2
   to_hit Mean_SP
    <int>   <dbl>
 1      3  1.56
 2      4  1.55
 3      5  1.53
 4      6  1.49
 5      7  1.45
 6      8  1.35
 7      9  1.24
 8     10  1.14
 9     11  1.00
10     12  0.852
11     13  0.722
12     14  0.542
13     15  0.347
14     16  0.255
15     17  0.106
16     18  0.0278