`Sharingan Koishii
@Pawsie
I don't create movesets for in game teams.
Magmortar@Quick Claw
Flamethrower
Confuse Ray
Thunderbolt
Focus Blast
Quick Claw should sometimes help its poor speed. Magmortar's special attack is great, but all his other stats aren't well balanced out. Hopefully the Quick Claw will help. I was thinking about Scarfing Magmortar but that wouldn't really help as you are limited to one move. Though you could try it.
Hmm... I look at that and think, "if I'm gonna use choice specs, confuse ray doesn't belong there." Also, since this is for the Wi-Fi League Quick Claw isn't allowed.
How about this as a small improvement:
Magmortar @ Choice Specs
Modest, Flame Body
EVs: 252 Sp. Atk, 252 Spd., 6 HP
Flamethrower
Psychic
Thunderbolt
Focus Blast
I think this one has slightly better type coverage, what do you think?