Strength Sap twice ⟩ Leech Seed ⟩ Click sap again once
for satisfaction ⟩ Moonlight Spam or just Moonlight spam after Leech Seed
76 Atk Entei Sacred Fire vs. 144 HP / 252+ Def Eviolite Oddish: 180-212 (67.4 - 79.4%) -- 31.3% chance to OHKO
Sap
-1 76 Atk Entei Sacred Fire vs. 144 HP / 252+ Def Eviolite Oddish: 120-144 (44.9 - 53.9%) -- guaranteed 2HKO
Sap
-2 76 Atk Entei Sacred Fire vs. 144 HP / 252+ Def Eviolite Oddish: 90-108 (33.7 - 40.4%) -- 18.8% chance to 2HKO
Seed
Life is easy now, watch the moon (Moonlight) and watch the dog die
Oh right if you are thinking of winning by the means of stone edge crit
1.You won't hit it
2.You won't crit it if you manage to hit it by chance
3.76 Atk Entei Stone Edge vs. 144 HP / 252+ Def Eviolite Oddish on a critical hit: 90-106 (33.7 - 39.7%) -- guaranteed 3HKO