OMG THAT DRUDDIGON YUUUUUUUUUIIIIIIIS- *cough cough* No but seriously, that thing's amazing. It's by far the easiest way to KO Dragon weak Pokemon. It's so easy to put into any deck that has trouble with Black Kyurem EX or Rayquaza EX. I've been wanting something, anything like this for so freaking long.
Milotic also seems really cool. Sableye/Life Dew/Milotic/Giant Energy attackers? lol. Okay, let's be real here. You'd obviously play Shedinja instead of Sableye/Life Dew. Okay, not that either, but just think of all the cards that could get a use out of that. Just think of how many Stage 1/2's that seem good, but just don't have the right Energy acceleration. I mean, Victini EX is basically free prizes anyway, and this doesn't waste an attack. I'm also curious if you can knock Milotic out with it's ability, kinda like Cofagrigus.
I'm surprised no one has talked about that Dusknoir yet. You can move damage to it, then just Max Potion it off, and it's much harder to kill than Reuniclus (and it will stay in format for longer, too). You also get a perfect reason to play the Sinister Hand one with it. You can even use Paindrops if your deck runs Psychic Energy. I think any deck that has Sinister Hand Dusknoir in it, and has room for Max Potion should include this card.
Toxicroak EX and Magnezone EX seem interesting. I'm a little frustrated at Magnezone, though, since it's another Lighting EX that can't one shot Yveltal. WHAT'S SO HARD ABOUT PRINTING A LIGHTNING EX THAT DOES 90 FOR 3? Really, what is so hard about that? If someone can ever pull off the ultimate combo of Dual Bullet with Muscle Band an active Yveltal and hit a second Yveltal on the bench, then Lysandre the other one up for a double knock out, that would be sweet. Toxicroak seems like a good attacker for Big Basic decks. If your opponent has no way to switch out of Poison, they'll go up to 150 (with Virbank out) by their next turn. All that for a DCE is really solid.
I guess I should've expected something like Surprise Megaphone. I think it might be a little too good, though. Tool Scrapper is still pretty balanced in this format, so having a super beefed-up one is a little silly. Prank Scope seems a little gimmicky. I like that disruption decks are getting a lot more Tools to work with, but I'm not sure how disruptive the card actually is. Pokemon Fan Club seems pretty good, considering we have next to nothing in terms of Pokemon search. You can even search for Jirachi with it to get a supporter next turn. I swear, Jirachi is going to be so good next format.
Those golden Megas are really really... stupid. It's just so underwhelming. I would've much rather gotten a FA Mega. I feel like the giant comic book words could fit really well in a FA. I'm really liking this set. There's a lot of deckbuilding creativity to be had here, especially with the EX hate with Milotic and Pyroar. Everyone's already said everything that can be said about the other cards, so I don't really feel like talking about them.