gold card sleeves Golden Hexagons 62x89mm Will Fit Cards Measuring Up to 61x88mm One Piece Card Game Official

One card that comes very close with 29 unique Pokmon in its artwork is the Champions Festival from 2019, which has frames hanging on the wall of some of the previous years: 7341024 175 KB The one from 2014 has 6 unique Pokmon in its artwork (counting the two different Vivillon forms as one)

Trafalgar Law (OP10-119) is the endgame piece

This text was basically reprinted in Night Maintenance from MT except better as it was changed to saying just Pokmon. Supporters like Flower Shop Lady from UD easily bests it, however you are reduced to only one per turn

Furthermore, Cyber Slash is also a decent Synchro by itself

Its relatively simple

Notably, it doesn't copy any effects that may have turned a noncreature permanent into a creature