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I don't think Keldeo can get past Specially Defensive Celebi with HP Ice.
252 SpA Keldeo Hidden Power Ice vs. 252 HP / 236+ SpD Celebi: 112-132 (27.72 - 32.67%) -- possible 4HKO
252 SpA Expert Belt Keldeo Hidden Power Ice vs. 252 HP / 236+ SpD Celebi: 134-158 (33.16 - 39.1%) -- 10.45% chance...
That is worrying, considering they have stated that they are going to ban people who have a lot of disconnects from future events. If they are not able to determine which player disconnects, then does that mean they are going to punish people who have played against a lot of disconnecters?
So why exactly does Nintendo not award a loss to people who disconnect? I've gone up against a lot of people in the high 1800s who just disconnect when they are about to lose. They were pretty bad, so I'm assuming they've been doing it for all of their losses and have not been punished for it -.-