1. Wailord. The opponent will get SO mad when he can't kill me and I'm three-hit-KOing him.
2. Porygon-Z. Even if he's flippy, he's averaging 80-160 damage!
3. Pachirisu. Best starter in the format. Enough said.
4. Claydol. ABSOL COUNTER!!!!!!!!!!
5. Cresselia Lv.X. If it wasn't for Magmortar, this would be #1. You take 2 Prizes when you KO something. The return of EXs?
6. Premier Ball. Finally, Lv.Xs may be faster!
7. Moonlight Stadium. FREE RETREAT WITH WEAVILE SW!!
8. Porygon-2. Extra Supporter when the Stage 2 is so good? I'll take that!
9. Darkrai Lv.X. Most flippy card in the format! Now all we need is a Body like Toxicroak's, just for Sleep...
10. Cresselia. One of the most underated cards in the new set, it heals one of you Pokemon to FULL HP, WHILE doing 50? All for the price of a discard and 3 Energies...
EDIT: Skull Bash, please tell us what the "best card in the set" is.