Which one :rayquaza-jade orb   kyorge-blue orb -need grouden of ss for jade orb   grouden-red orb-need kyorge of hg for jade orb     mewtwo after either elite four or 16 badges   ho oh-rainbow wing in pewter city old man on raised platform   lugia-steel wing and tidal bell

If you have hg AND ss you may beable to copy it the put it on the other one well thats what  I did and itt works

Well that fails when you need two rayquazas or two charizard's instantly