to solve the t-tar/ scizor problem just switch celebii to the tinkerbell set
Life orb, modest, 232 HP / 244 SpA / 32 Spe
Leafstorm (ohko t-tar) HP fire (ohko sciz) t-wave, rest/recvover
*edit* hmm after reading wolfys post the scarf jirachi MIGHT be a better idea... but it wouldnt hurt to try...