64/111 Mantine
The classic It Goes Infinite with a Ham Sandwich card, Lion's Eye Diamond makes you all the mana, discard all the cards, and can repeat that with so many cards
With only two ways to do it, it's going to be a slow, costly feat to collect lots of Japanese cards, but it certainly opens the door for those who want to complete different collection goals
Cards like Sanctum Seeker , Bloodtracker , Timothar , and Glass-Cut Heart are all either slow effects that require multiple turns to pay off, cost way too much mana for too little effect, or both
Galvantula ex If you have Energy to spare, or have discard pile draw, who doesn't want to lock their opponent out of using beneficial Item cards