yes, but only in multi battle.
You can battle her as the champion after the Elite Four.
YES.
fill your pokedex and battle more trainers
Elite four member Lucian uses an Alakazam when you battle him at the Pokemon league.
Yes. Not only her, but the whole Pokemon elite four.
what i do to lvl up Pokemon is give experience share to a Pokemon tht i want to level up and battle the whole elite four over and over and over again.if u cant access the elite four i would use vs seeker alot and battle.(if its possible in Pokemon platinum)
Travel to fight area and challenge the BATTLE FRONTIER
The eighth gym leader of Sinnoh, Volkner, returns to battle you again in Platinum after you beat the Elite Four. When you get to battle frontier, you and your rival have a double battle against Volkner and Flint, an Elite Four member.
you can battle the elite four as many times as you want but after so many battles their Pokemon go up by about 10 levels
spiritomb and if u want to see it u can see it when you battle cynthea (elite four champion)
no, these Pokemon are unknown in Pokemon platinum
either battle elite four member Lucian (the one before the champion). or trade your Kadabra.