Since you have Pokemon Black, you cannot catch it in the wild, you can only do that on White. So what you have to do is either trade normally with a friend or you can go onto the Global Trade System which is in the Pokemon center and you speak to the nurse uptairs to the far right. You then type in Thundurus and you have to have a Pokemon that they want.
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.
Black only: Reshiram, Tornadus White Only: Zekrom, Thundorus
You cant capture thundourus in Pokemon black,just in white.If you have action replay or R4 then you can by cheating.
at the abundent shrine but u have to have both thundorus and tornadus in your party
Thundorus has to be traded in from white whereas tornadus can be caught as soon as you reach route 10 in black
look frist its its tornadus u get in black and seconed thundorus is one white's legendarys. if u really want get thudorus in black u trade with a freind that has white ;) thanks 4 raeding my answer bye bye
Zekrom, reshiram, cobalion, virizion, terrakion, tornadus, thundorus, landorus, and kyurem
You have to have thundorus and tornadus in your party use the Eon Flute a new mirage will appear as a big black storm cloud and he will be inside
Thundorus is a roaming Pokemon and you have to go to a house on route 7 and talk to a lady and she will tell you about him. then when you go outside he will be there but if you dont capture it in the first try he will flee. to get his location you must look at the notice boards to between routes to see were it is raining.
First you go to Mistralton City and go north until you find the tall grass with the trail above it and walk on the trail. Be careful not to fall of but if you do there is a second trail if you walk ahead. When you get back on the trail follow it until you found a house. There will be a women there who invites you in and tells you about Thundorus. She will offer you soup. Whichever answer you choose, she will still give it to you. When you are done you can leave but the woman in front of the telvision there can heal your Pokemon. After you leave, your character will hear a sound and find that it is Thundorus. It will circle around you and then fly off. I do not know exactly where to go after that but in the cities there are electric bulletin boards. There also some at the beginning of the routes. They will have reports of thunderstorms near the city or in the route. If there are thunderstorms there go into the tall grass and you will eventually be leaded to Thundorus. If you cannot find any signs with reports of thunderstorms check all of the routes until you get to a thunderstorm. Good Luck! There are also videos to get Thundorus and Landorus on Youtube but they were not made by me. Other legendaries can b found in different Youtube videos. Gotta Catch 'em All! Pokemon!
if u have Pokemon black, u get a tornadus.if u have white u get thundarus. if one of ur freinds have pkmn black or white, ask them to temporarily trade u a tornadus(black) or a thunderus(white) so u have both. now, put them both in your party, then head of to the aubondent shrine(sorry for spelling) search there and u will encouter a landerus.( i highly recomend u have at least a lv.70 or higher. if u have any questions just tell me and i will hapily answer it. happy catching! p.s, when u have caught landerus trade tornadus or thunderus back to ur friend. don't worry,as long as u have caught landerus, it wont go away if u trade tornadus or thunderus.
Thundurus could be anywhere roaming Unova. To find out where, either read the screen inside the city gates or search every route until you see a heavy rainstorm