The key reason why counterfeit cards themselves would be considered illegal is because it breaks many of the rules of fan-art: its being sold to fool people into thinking theyre authentic cards it almost always uses authentic art assets in their bootlegsand no, adding three extra zeros to the HP and attacks wont change that it attempts to interfere with Nintendos ability to sell cards (as in, people buy the cheaper bootleg and NOT authentic packs) the low quality of these knock-off cards may in turn get random people to think ALL official Pokmon TCG cards look just as bad Remember, most companies look the other way when it comes to fan art because fans dont operate at such a huge level to actually interfere with legitimate business operations
Good ol' Staples The Skill
Questing Beast + Rampaging Raptor Questing Beast and Rampaging Raptor are great aggressive creatures that can take care of planeswalkers
Besides Robbin Goblin working with the double attacking Battlewasp Hama the Conquering Bow and Battlewasp Twinbow the Attacker, its also worth looking at Trackblack as support
return it to the Extra Deck, then you can Special Summon 1 "Fluffal" or "Edge Imp" monster from your GY
Secondary to that, however, I just think this is a bloody clever idea