You can't catch it in Black, but you can catch it in White. In the White Forest.
not catch but by Pokemon transfer or the Dreamworld
You can not catch any of them in black or white, but I think that you can catch all 3 in diamond.
You can get Zoroark by trading an Event shiny beast Pokemon to Pokemon Black and White via the Relocator.
you have to get in Pokemon white
you catch it when you go againest N at the Pokemon league
You can catch virizion, terrakion, cobalion, zeckrom, thundurus, landurus,kyurem, and celihidron
at N's caslte (note after you beat the elite four(not the champian))
You can not catch Zeckrom in black. You can only catch Zekrom in Pokemon White.
No. You have to trade Reshiram from Pokemon Black and Zekrom from Pokemon White.
!
You need the white version
Nope, repel is a shiny's worst enemy >:(
The legendary shiny dogs event
You can get Zoroark by trading an Event shiny beast Pokemon to Pokemon Black and White via the Relocator.
Yes you can. I caught a shiny Zebtrika (no cheats) on Route 7 in a wild encounter.
You have to be lucky. It's about a 1 in a million chance that you find a shiny. I think the easiest way to catch a shiny legendary is to save in front of it and keep restarting until it's shiny.