Step 1:
Raikou used Thunderbolt! (-7 EN)
Crit (1, d24): 24 (No crit)
(9*1 + 3 + 0 + (8 - 8) + 0)*1 + (0 - 0)*4 + 0 = 12 (Substitute HP: 5 - 12 = -7)
Mimikyu's Decoy faded!
Mimikyu used Swords Dance! (-7 EN)
Mimikyu's Attack rose! (+2 Atk)
Step 2:
Raikou used Thunderbolt! (-7 EN)
Crit (1, d24): 8 (No crit), Paralysis (1, d10): 9 (No paralysis)
(9*1 + 3 + 0 + (8 - 8) + 0)*1 + (0 - 0)*4 + 0 = 12
Mimikyu used Swords Dance! (-7 EN)
Mimikyu's Attack rose! (+4 Atk)
Step 3:
Raikou used Thunderbolt! (-7 EN)
Crit (1, d24): 14 (No crit), Paralysis (1, d10): 7 (No paralysis)
(9*1 + 3 + 0 + (8 - 8) + 0)*1 + (0 - 0)*4 + 0 = 12
Mimikyu used Pain Split! (-22 EN)
Raikou was hurt! (-19 HP)
Mimikyu recovered HP! (+19 HP)
Round Summary
Mimikyu HP: -12-12+19 = -5
Mimikyu EN: -7-7-22 = -36
Raikou HP: -19
Raikou EN: -7-7-7 = -21