Roll 20d600: 580, 424, 564, 502, 75, 259, 438, 577, 322, 568, 580, 525, 384, 460, 483, 407, 344, 461, 24, 301
Step One
Machamp used Earthquake!
Crit [1-25/600]: 580 (No)
Damage: 10+9-6+3+2 = 18
11 EN
Azumarill used Belly Drum!
Azumarill: -29 HP, +6 Attack (P), Belly Drum (6s)
30 EN
Machamp: -2 HP (Burn)
Step Two
Machamp used Fling!
Machamp flung its Flame Orb!
Crit [1-25/600]: 424 (No)
Damage: (8+9-6+3+2)*0.75 = 12
Azumarill: Burned
6 EN
Azumarill used Waterfall!
Crit [1-25/600]: 564 (No)
Damage: 8+3+8-6-3+12 = 22
5 EN
Azumarill & Machamp: -2 HP (Burn)
Step Three
Azumarill used Play Rough!
Crit [1-25/600]: 502 (No)
Attack Drop [1-60/600]: 75 (No)
Damage: (9+3+8-6-3)*1.5+12 = 28.5~29
Machamp: Knocked Out!
6 EN
Azumarill: -2 HP (Burn)