Are there 3 legendary sword of justice Pokemon in white 2?

You're likely thinking of the Legendary Swords of Justice, which are Cobalion, Terrakion, and Virizion. They are not in Pokemon White 2.

They first appear in Pokemon Black 2 and White 2, but only as a trio in Pokemon Black 2. In White 2, you'll encounter only Keldeo (the fourth member of the Swords of Justice) and Virizion, both in their respective forms.

To find Virizion in Pokemon White 2, you need to:

1. Complete the main storyline.

2. Go to the Giant Chasm.

3. Talk to a hiker, who will tell you the location of Virizion.

4. Locate Virizion in the Giant Chasm and battle it.

Let me know if you have any other Pokemon questions!