Personally, I use orange-hue Katana sleeves with a wavelength of around 600 nm, giving my 60-card deck a polished 10/10 look and feel
Pokmon Center Exclusive ETBs : Sold only at Pokmon Center, with extras like stamped promos (e.g., extra Eevee in Prismatic Evolutions)
There is also a lot of discourse surrounding how OP MTG 's Badgermole Cub is in Standard, to the point that some players are preemptively calling for a ban ahead of tournaments
A special section of older counterfeits have been dubbed, "Dark Beta" which was done by a former Carta Mundi employee after normal work hours
Fury The other part of the Rakdos Scam decks, Fury was hit by the ban hammer in Modern after it was felt like that deck was a little too much
Rest in Peace, Containment Priest, Relic of Progenitus, Nihil Spellbomb, and their ilk will shut you down hard, so keeping at least 1 piece of spot removal for these on hand should be a priority