First, before entering your save file, scroll down to choose the Mystery Gift option. Then choose the Wi-Fi option. It will search for an event, and if you find one, you can download it. You can have up to a maximum of three Wonder Cards.
it was a pokemon event but if you have a action replay you can get it
Trade or wait for an event.
You Can Get Arceus On Pokemon Soul Silver By Using A Cheat Cartridge, Trading It From Another Pokemon Game (Pokemon Diamond, Pearl Or Platinum) Or Via A Nintendo Event. Hope I Could Help =)
You have to get it from an event. If you have Action Replay, you could also get it from an event there.
in ilex forest by special event from the next Pokemon movie event.
To get it you have to go to a special Pokemon distribution event
i thank that you get it in a Pokemon event but not really sure
Nintendo event or action replay
You can replay the arceus event with action replay.
sorry but it is an event only Pokemon or you have to migrate it from another game
no
you can't catch it, you have to get it from an event which has passed