Scyther Calc

So you are forced to SD at least once to win the 1v1
8 Atk Technician Scyther Bug Bite vs. 248 HP / 252+ Def Musharna: 170-204 (39 - 46.8%) -- guaranteed 3HKO
+2 8 Atk Technician Scyther Bug Bite vs. 248 HP / 252+ Def Musharna: 338-402 (77.7 - 92.4%) -- guaranteed 2HKO

With 2 SDs, you can kill Musharna even from full
+4 8 Atk Technician Scyther Bug Bite vs. 248 HP / 252+ Def Musharna: 510-600 (117.2 - 137.9%) -- guaranteed OHKO