yugioh card with infinite attack and defense Yu-Gi-Oh! Wiki Mint / near mint condition trading card YU-GI-OH! - Goblin Elite Attack

Something along the line of a scannable code on cards to verify authenticity would get the job done, but implementing the program would be costly, and it wouldn't help with all the cards that are currently in print (barring some sort of mass-exchange program, which would be even more prohibitively expensive)

Card Set(s) -ADVENTURE ON KAMI'S ISLAND- [OP15-EB04] CARD VIEW EB04-007 | SR | CHARACTER Roronoa Zoro Attribute Slash Block icon 4 Type Egghead/Straw Hat Crew Effect [On Play] Your Leader gains +2000 power until the end of your opponent's next End Phase

inflict 500 damage to your opponent for each monster sent to the GY

Modern architecture offers

Its effect persists until it leaves the field