Is it possible to get a Life Orb in Black/White because I want to use it in a combo that I planned.
Yes, all u have to do is go to the Gear Station and buy the Life Orb for 48 Battle Points Source- http://www.serebii.net/itemdex/lifeorb.shtml
The Gear Station is located in the Center of Nimbasa City-
For more info go here-- http://www.serebii.net/pokearth/unova/gearstation.shtml
Hope this helps =P
Yes, it is possible. You buy it at a shop in the Gear Station for 48 Battle Points.