There is an event where you can get it from.
you cant but but if you can wait till august 8 2011 it will bet is Pokemon shade of darkness version and in Pokemon crystal light version
(by a can of beans)The best Pokemon in Pokemon
Special event on spear pillar
darkrai and arcus
There is no best Pokemon on Pokemon HeartGold.
there is no Pokemon Mansion in Heartgold.
They are not in Pokemon HeartGold
ho wont arcus give me celbi
where is the pokemon transfer lab in heartgold
I'm assuming that by "arcus" you mean "arceus". You can't get Arceus except from special events held by Nintendo, or by cheating and using Action Replay.
he can use all of the attcks cuz he is the god of Pokemon
you have to trade it over from platinum because it is not in the unova pokedex