Mamoswine can reach a maximum or 394 attack with an attack boosting nature 31Ivs and 252 attack EVs. If you equip a choice band, Mamoaswine is lockedf into a single attack but reaches 591 attack.
It faints the Pokemon using it but sharply lowers the enemy's attack and Sp. attack. I would recommend it on a Pokemon unless battling high level Pokemon.
i think heartgold is hell better because hoho has a amazingly pro high attack and special attack and lugia has a high defense and to much of attack.(remember you can't only be able to take a hit you must also be able throw a hit back).
level 100.
Level it up with high friendship
Make it have high happiness and then it'll evolve.
with a pokemon at a high level that's fire flamethrower
Charmander, high defense,high attack
adamant
It's better to have a high Typhlosion level
Use a high level flying type or psychic type.
I believe she has a cleffairy and a miltank. Warning! Miltank is really hard! Unless you have a fighting type. It has high defense and it can attack well and when its HP is down, she uses either a super potion or miltank heals itself!
just use high level pokemon that have ground type moves, since hes eletric =]