Most reputable brands (Ultra Pro, VaultX, KMC) are PVC-free, but its worth checking if youre buying budget sleeves
I guess all Korean cards released during the ex era had a Japanese backs, although Im not sure if any others besides the ADV pack and 1/P Pikachu promo are released in Korean tbh
And with Isperia in command, any time someone tries to hit you, you just draw cards
At the end of the Battle Phase, if this card destroyed a monster by battle and sent it to the Graveyard this turn: You can Special Summon 1 "Halloween" Tuner Monster from your Graveyard, and if you do, your opponent draws 1 card
The extent to which these were printed is dubious, although I recall hearing the print run was less than one out of every 1,000 packs