If you miss a event you could get a action replay and get it from that.
Arceus is a pokemon from the Sinnoh region. It is a legendary pokemon that is normally given out in Nintendo Events however the original method for getting the pokemon was via gameshark.
There is no legendary Pokemon in Undella Bay.
Yes, Glaceon is a legendary Pokemon card.
that depends on what moves you teach it! =)
I am afraid you can not.
Events, which have finished now.
no they do not
go to Pokemon.marriland.com and search the legendary Pokemon you want to see
All of the legendary Pokemon can be caught: First: Nintendo of America Events Second: Action Replay/Gameshark Codes Third: Trading
there is no event for manaphy you have to get it from Pokemon ranger
when you get a speicial legendary and take it to a certain spot
Have your friends trade you a celebi or shiny. There's a Japanese event where you can download Zoroak, so it might come to the English speaking countries soon.
A Rock/Fairy-type legendary Pokemon that you can only get through events. It was first introduced in Pokemon X and Y.
Without migrating anything from Generation 3 (including the three Regi's) or going to any events, there are Dialga, Uxie, Mesprit, Azelf, Giratina, Cresselia, Heatran. If you include events, you can get Manaphy, Phione (even though Phione is technically not a legendary, you obtain it by breeding Manaphy, so I'm listing it here), Arceus, Shaymin, Darkrai. If you migrate, you can get all of the legendaries in the game (unless you've missed an event for a particular pokemon)
The Salac Berry is a rare berry in Pokemon Diamond. It can only be obtained from distribution events that had legendary Pokemon holding them. These events are no longer being ran or support for Pokemon Diamond.
Events are the Nintendo Wi-Fi connection events held by Nintendo. You have to connect to Wi-Fi in order to find out if there is an event. These events usually have rare Pokemon or legendary Pokemon you normally cannot receive in the game.