Review:
Geomagnetic Storm: Niche stadium, there too much variety in decks to tech just for the resistance one might have, UNLESS your deck is so OP that the only thing holding it back from being number 1 is that resistance. Cobalion could use a stadium but nothing important resists steel and steel bullet tho so no point,
Toxicroak: Meh, cool art, pretty average attacks, not breaking any meta's, but that's ok
Magenezone: ehh, might work in sniper decks if some form of electric generation is brought back. I mean yeah, if you could get the energy right away 50 damage to two is really workable 2nd turn, but by 3rd turn when something more reliable is set up its no so good. ALTHOUGH, this might maybe be the attacker in the regular magnezone deck I was considering where you use its ability to stall by abusing supporters like that you would normally use, such as team flare grunt, nurse joy, ghestis, Cassius, while also having draw support.
.
We know about all the fire stuff and khangaskhan, boring.
Joy
its nurse joy whats this just "Pokemon center Lady", unless like the normal heart they are being witty and naming it like a kid would):I actually love both joys arts, but the card might not be so good unless of course, in niche decks
Surprise Megaphone: great for tooldrop, terrible for everything else with tool scrapper still here.
EDIT; WAIT all your opponents tool cards that are attached, screw tool scrapper if that true, but why would they make this and goodra, there's no reason for goodra if you run this in a nice amount, although now I'm also sad, because float stone is easier to get rid of in my decks which practically require it.
Pokemon Fanatics: people might actually use this considering it gets two regular basics or EXs for setup, which some decks might consider more useful then a hand shuffle or discard.
Prank Scope: Red Cards, Malamar, Dialga, the discard decks are coming together, niche techs in other decks. if there was a way to put a specific card on top of their deck, then yah, this and junk hunt would be awesome.
I'm pretty sure there's more to see, but I think so far the fire types have an obvious meta going in with this set and everything else needs to be figured out.