[Scripting Question] [Essential 16.2] Create a new Mega evolution with special attack

[Gemini_air]

Hello guys! I Need your help: I'm going to create a mega evolution with Greninja using the ability "battle bond" and, when it is in the ash form, replace water shuriken with a new move. Is possible? Thanks for all!

MultipleForms.register(:GRENINJA,{
"getMegaForm"=>proc{|pokemon|
next 1 if isConst?(pokemon.ability,PBAbilities,:BATTLEBOND)
next
},
"getBaseStats"=>proc{|pokemon|
next [72,145,67,153,71,132] if pokemon.form==1
next
},
"getMoveList"=>proc{|pokemon|
next if pokemon.form==0
movelist=[]
case pokemon.form
when 1; movelist=[[36,:ACQUALAMEGIGANTE]]
end
for i in movelist
i[1]=getConst(PBMoves,i[1])
end
next movelist
}
})