Hypnotoxic Laser Hypnotoxic Laser needs no introduction for its history with the infamous venom deck with the Virbank City Gym PLS 126 stadium combo, which amplified the damage counters of this status, very common in Darkrai EX , Mewtwo EX and the Garbodor list itself with the ability Garbotoxin , for those who were around for the Black/White era
I do have others I want to cover before then, too, especially one that's on my shortlist
For example, if you control Johann, Apprentice Sorcerer ("Once each turn, you may cast an instant or sorcery spell from the top of your library.") and Questing Druid is on top of your library, you can cast Seek the Beast, but not Questing Druid
The only way to play them is in a casual format with a friend or group of players that all agree to allow some or all of these silver-bordered cards (in Commander, this is known as Rule Zero)