Question: where to get ditto in pokemon black 2?
Answer: 1 vote. Only in the Giant Chasm's forest, where it has a 15% chance to appear. There is also a Hidden Grotto in that location that may hold a Ditto with its Dream World ability, Impostor. ... 
0 votes. Giant Chasm. Source. ... 
0 votes. I actually found mine on victory road, near the badge-checking area.