Action 1:
Speed Order: Smeargle, Mawile
Smeargle used Covet
Crit Check (625): 5759 (NO)
Damage: (6+0-7.5)*(2/3)=1 trust me
EN Used: 4-1=3
Smeargle stole Mawile's Everstone
Mawile used Play Rough
Hit Check (9000): 1208 (HIT)
Crit Check (625): 7150 (NO)
Damage: (9+3+2+2+4.5-3)=17.5
EN Used: 7-1+2=8
Action 2:
Speed Order: Smeargle, Mawile
Smeargle used Moonlight
+25 HP
-15 EN
Mawile used Brick Break
Crit Check (625): 5037 (NO)
Damage: (8+4.5-3)*1.5=14.25
EN Used: 6
Action 3:
Speed Order: Smeargle, Mawile
Smeargle used Will-o-wisp
Hit Check (9400): 7048 (HIT)
EN Used: 7
Mawile was burned
Mawile used Play Rough
Hit Check (9000): 6790 (HIT)
Crit Check (625): 7099 (NO)
Damage: (9+3+2+2+4.5-3-3)=14.5
EN Used: 7-1=6
-2 HP Mawile (burn)