From that date, only cards with H, I, or J regulation marks will be legal to play, and cards marked 'G' will no longer be standard legal
Theres a reason many of us still cant get Your move! to the tune of the Yu-Gi-Oh
Even when it kills the creatures
Aminatou, the Fateshifter Aminatou, the Fateshifter is more of a weird Scrambleverse effect, but it results in you controlling someone elses permanents
Still, once it resolves, you can choose how to kill your opponent slowly by either casting spells from the top of their library without paying mana, shrinking their hand, killing their creatures, and, if they've survived long enough, exiling all their non-land permanents with the ultimate
That 1st edition changes everything, Best of luck with your collecting goals buddy