My personal take on these:
Trainers:
"Giant Mantle" Pokemon it's attached to gets +20 HP- Finally some support for non basic Pokemon(although it still won't make much of a difference)
"Rescue Scarf" Same effect as Rescue Energy I believe- There are better things to use
"Tool Scrapper" Mostly based on the name, I want to say discard 2 Pokemon Tools in play, but this one's rough.- Seems like a cool card if this is what it actually does
Maybe Hyper Devolution Spray?
As for that Devolution Spray card...I don't see it mentioning anything about the discard pile, so it's very possible that card is indeed Hyper Devolution Spray.- I believe it was confirmed that it is Hyper Devolution Spray a number of weeks ago.
Pokemon:
Bouffalant:
Bouffalant takes 20 less damage from attacks, and its attack does 60 extra damage to Pokemon EX from my rough translation.- I like it, but still too weak
Jumpluff:
Also, I believe Jumpluff's ability allows you to return all cards attached to it to your hand to draw a card for each once per turn, and its attack flips 2 coins, doing 20+30 more for each heads.- This+Emboar seems broken with the right number of energy. If only this wasn't a Stage 2 bench sitter
Ninjask:
~Apparently Ninjask's Ability is...Empty Shell? It mentions something about a Shedinja being played from the deck when you evolve Nincada...I think.- Cool I guess
Dustox:
Also that Dustox poisons, burns, and puts to sleep for 1 Psychic Energy. Pretty crazy- Pretty crazy indeed
Gothitelle:
Man, if I'm reading Gothitelle's first attack correctly...
Flip 2 coins. If both are heads, your opponent's active Pokemon is knocked out. -O_O well then