Hey we have to battle for the #pokemon ou tourney. Im gmt -5 and available all day on the weekends and on the weekdays im available 8 am-2pm And 8pm-10pm my time.
Well i haven't played much of B/W yet, but i guess Cresselia wouldn't fit anymore against the offensive threats that are out there at the moment. Perhaps maybe try a Healing Wish user instead such as Jirachi/Celebi, in conjuction with say Terrakion which to me it seems to be the greatest offensive threat.