ok now listen you need to stick your hand in your butt
You must trade from Pokemon White, which instead of Tornadus, it will be Thunderus. :)
trade. no other way.
Throw a pokeball at it.
First catch Thunderus then Tornadus then go to Abundant Shrine.
if you talk to the shrine with tornadus and thunderus then landorus attacks you and you can catch it in battle.
Get both Tornadus and Thunderus to the Abundant Shrine and it will appear
catch thunderus(white) and tornadus(black) and go to the top of abundant shrinethey have to be on your team
You can't get Thunderus in Pokemon Platinum at all. By then when Pokemon Platinum was made, no one knew that Pokemon Black and White were going to be made.
In Pokemon black you catch RESHIRAM and TORNADUS In Pokemon white you catch ZEKROM and THUNDERUS Sources : myself
i just used loads of ultra balls until i caught him
You catch Thundurus, but must trade Tornadus from Pokemon Black.
In white there will be a thunderus on route 7 in theory. If not go to a electronic billboard and wait till a report on the weather comes in. it will say BIG STORM IN ROUTE blah...blah...blah... Go to that route and thunderus will be there. p.s. don't worry about failing to catch it for the first time, thunderus will go to a different route a little later. p.p.s. I suggest using Mean Look because thunderus will flee almost immediately.