Well first you have to catch Cobalion. you can find him at Guidance Chamber (Sorry I don't" know where the Guidance Chamber is friend caught mine.) then go to Pinwheel Forest and there will be two bridges. On the right bridge there will be an opening then go right then up the stairs then go to the log then keep going straight there should be a opening go through it and virizion should be there Hope this Helped :)
Virizion does not evolve.
You can find Virizion in Pinwheel Forest after you have fought Cobalion.
In pinwheel forest
Virizion will appear to you as you make your way through route 11.
Virizion is for pokemon black. You can find Cobalion in white.
Landorus, Tornadus, Thundorus. Or Cobalion, Virizion, Terrakion. Tornadus is only available in Pokemon Black and Thundorus is only available in Pokemon White. You have to trade Thundorus (Tornadus) to Pokemon Black (White) To get Landorus. You have to get Cobalion before you can get Virizion and Terrakion.
Any
not at all
The legendaries on Pokemon black are Tornadus, Kyreum, Reshiram, Cobalion, Terrakion, and Virizion. I can help you find them, too!
pinwheel forest find an opening in the gate near the bridge walk through it then it will lead you to virizion
virizion in pinwheel forest
Virizion is a Grass and Fighting type pokemon.