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Bottom line is- Keldeo should not be banned cause it, unlike Tornadus-t, does not terrorize the metagame to the point that your number one concern is to counter said pokemon.
I agree with shrang- there are pokemon that go up to ubers, and then just completely die out from the metagame (eg. manaphy, tornadus-t, etc.) Besides, keldeo isn't broken- it just needs a bit of wearing down to be dealt with. While pokemon in the old days like tornadus-t completely rampaged the...
Lapras should be moved up from C to B rank. Despite its unfortunate Stealth Rock weakness, Lapras is easily the best check to any water type in the tier, having the infamous BoltBeam combo and even having Heal Bell for Alomomola's Toxic.