Hey man, despite Musharna not being the most practical lure, you could probably change Energy Ball to Psyshock since it does nearly the exact same damage and it's better on Musharna in general. Hope this helps!
Musharna @ Leftovers
Ability: Synchronize
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
IVs: 0 Atk
- Energy Ball
- Heal Bell
- Moonlight
- Calm Mind
An already great mon in PU to make it greater while versing Lanturn. This mon can take hits like a truck and then Damages Lantrun like a truck. first of all I wanted a Special Defender Because all Lanturns attacking moves are special attacking moves. heal Bell to heal Musharna's Poisoning if it gets any with lanturns Toxic. Moonlight to heal Musharna. And Calm Mind to rise the Sp. ATK Even more.
Offense:
+1 252+ SpA Musharna Energy Ball vs. 128 HP / 252+ SpD Lanturn: 242-286 (57.2 - 67.6%) -- guaranteed 2HKO after Leftovers recovery
+2 252+ SpA Musharna Energy Ball vs. 128 HP / 252+ SpD Lanturn: 322-380 (76.1 - 89.8%) -- guaranteed 2HKO after Leftovers recovery
Defense:
0 SpA Lanturn Volt Switch vs. 252 HP / 4 SpD Musharna: 63-75 (14.4 - 17.2%) -- possible 9HKO after Leftovers recovery
0 SpA Lanturn Scald vs. 252 HP / 4 SpD Musharna: 72-85 (16.5 - 19.4%) -- possible 8HKO after Leftovers recovery
+1 252+ SpA Musharna Psyshock vs. 128 HP / 128 Def Lanturn: 241-285 (56.9 - 67.3%) -- guaranteed 2HKO after Leftovers recovery
+1 252+ SpA Musharna Energy Ball vs. 128 HP / 252+ SpD Lanturn: 242-286 (57.2 - 67.6%) -- guaranteed 2HKO after Leftovers recovery