I'm loving the Scizor, Arceus, Pumpkaboo, Gorgeist, Phantump, and Trevenant cards. My only problem with Scizor, however, is that it should not have a resistance to Water, as it looks inaccurate.
Pumkaboo is a bit OP. Drop the HP boost to 20 HP and Rolling Crush to 30. You also need to clarify when the effect of the Ability ends.
Golurk AT would be a nice card to use as reference. You may also like to consider to add a design element so that you have a way to remind you later on in the game, especially if you have multiple Pumpkaboo out, how many coins you flipped for the Pumpkaboo. You could use special counters (like, Boost Counters or something) or attaching x amount of cards (Pokemon/Trainer) from your discard pile.
Some really nice concepts here! I really like how fun these cards look, especially the pivotal nature of Dedenne and the discard-to-snipe nature of Stunfisk! I do think you should probably tweak the balance for a few of these cards
I would make Electric Bombardment only do damage to a single Pokemon. With the right decklist, it would not be uncommon to power up a Stunfisk enough to be doing 60 to all Pokemon each turn, and potentially winning on Turn 2 or Turn 3.
You could probably drop the power of Dedenne's attack by 20, but otherwise its very nice.
I personally would drop Lugia's second attack down to 30, but that's more my taste.
It is very noticeable! ^.^Thanks! I put a lot of time and thought into them so that way 50% more of Pokemon in a set wont be binder filler.
Bronzong is a Stage 2 (effectively), though.-snip-
Also what do you think about Medicham?