keldeo on Suspect...umm, shouldve thought about it i guess.
IMO, its the single best scarfer in the OU tier, and bri did make a very good point (yet obvious) when he said that almost every counter it has, gets pursuit-trapped. And notes, im not even talking about rain Keldy, im talking about the pony in general. The single reason you run Keldeo on your sand team (a very popularized strategy) is so it can be with its best buddy: Choice Band Tyranitar, which destroys every damn ''counter'' you find for the pony bar Toxicroak, which still, is a subpar and weak pokemon, easy to deal with to an extent.
And well, in rain, Keldeo suddenly is turned into machine of pure destruction. Specs has a power comparable to that of King Kyogre, Scarf still holds the title of the best late game sweeper in the meta. Im not gonna mention CM sets becuase imo, theyre a waste of the pony's potential, Keldeo needs as much turns as it can to wreak havok.
Now, on the subject of rain, Big Bird is probably much more prone to a ban than Keldeo is becuase of 3 factors it doesnt have: a trolly speed tier, Regenerator, and Flying STAB. What i find most hard to deal with when facing Torn is its legendary fast U-turn, as we all know, there is no offensive counter to the bird, so we have to count on defensive counters, which are outspaced, and give the opponent momentum. A very common situation when facing Big Bird with a Sand team (i choose sand because its the 2nd most used weather) is: Torn being against your Landorus, you switch to your SpDef rotom, you take 30% from Huricane, without taking into factor rocks, then Torn will Uturn, you either Pain Split or Volt switch, lets say in the switch to ferrothorn, the former gives the opponent free hazards, the latter leaves vulnerable when Bird comes back in.
That is just a generic example of what happens to a LOT of teams when Big bird comes in safely, but thats besides the point: Torn T makes Rain very unhealthy for the metagame, because, of the ease that rain maintains its weather up, it gives MASSIVE advantage to the rain user. Also, did i mention if you lead with Torn against HO, youre mindfucking your opponent? If he Magic Coats, Hurricane 2HKOs, and if he doesnt, he can get taunted, yea, quite a more sure Uber than Keldeo (but still, the thing overpowers rain and even SAND, hello?).