Your overall creature count including token generators should be pretty high, much higher than 10 cards, ideally more in the 16 or so range
When the type was introduced in Generation VI, Sylveon became its poster child
This thankfully includes all the special hidden cards (including a super secret Mew), however, and collecting the regular set takes much less time
If they get a setup with Toad on board turn 1 you can bait it out by attacking into it using Honest Neos or Mask Changing
Voldaren Thrillseeker - say what you want about cheap kills and unga-bunga strategies, but I really love all of the nasty synergies that this card was able to make with different variations of the "sudden win" combos made for it
Pieces like Darksteel Plate and Commanders Plate are fantastic protection, and should keep Cloud alive in a lot of cases