if you are doing the quest wish for the vien forest.
after you find ollie in vien forest go left and catch a floatzel walk past blastoies and ride the floatzel till you reach the dock near waterfall get off at that dock and Celbi will appear next to the water fall. the walk south and you will find celbi there it will run from you though so you will have to have a doduo so that you can chance it down faster as the long grass dose make you go slow.
no you don't
you need a event.
No.
Hack of trade.
You can get the Celbi in Pokemon Nirvana by having Pikachu on the correct level and then you climb up the Cyrus tree. You will then see the Celbi in the tree.
celbi cannot be cached on Pokemon heart gold and soul silver to get celbi in gold and silver you haft to cheat sorry:( not god at English
an event from new york.
Action replay
It's only an event pokemon. Check out Serebii.net for details on that
Celebi is only available through special Pokemon Events.
Although I don't have the answer, Serebii.net will. It has all the Pokemon in the browser if you look on the first links box on the left hand side. It's at the very bottom, but it has all the Pokemon and locations for ranger and Mystery Dungeon!
ho wont arcus give me celbi