Well I tried this one and it casts Lightning Bolt once and never again :

/run SetCVar("Sound_EnableSFX","0")


/use 10
/use 13
/cast Blood Fury


/click sdf__DPS1
/click sdf__DPS2
/click sdf__DPS3
/cast Lightning Bolt

/run SetCVar("Sound_EnableSFX","1")
/script UIErrorsFrame:Clear()