There is Victini
Zekrom
Cobalion
Terrakion
Virizion
Landorus
Kyurem
Tornadus (Roaming)
Thundurus (Roaming)
Any Pokemon can breed with Ditto unless they are legendaries.
They are similar but they have different legendaries. *Source- Played Pokemon when I was little.
All except for Garitinia and all from Pokemon black and white.
all i know so far is Zekrom and kyurem
Ditto can breed with anything except legendaries.
No, it's just a rare pokemon to get.Oh and Zoroark is in pokemon black and white. Not Diamond and Pearl.
There are 130 in black and white. 26 more are legendaries. This adds up to 156 pokemon.
The legendary Pokemon you can get on Pokemon white are kyurem,thunderes,zekrom,cobilion,virizion,terrakion and landouros (landourous requires tornadous from black and thundrous on white in your party
If you mean the legendaries on the cover, Reshiram for Black, and Zekrom for White
Well, the most powerfull non-legendaries are Chandelure, Archeops, and Hydreigon. Hope I helped :)
You don't need them for the storyline, you get them so your pokemon can hold them and raise their stats.
Try to not use legendaries, it will show that you can be strong without them!