Well, there's probably some argument for Cori-Steel Cutter, which dominated Pro Tour Final Fantasy earlier this year before its banning and is still a top-tier card in Pioneer and Modern
Instead, its far more likely hell be at the mercy of General Tazri, commanding unofficially from the 99
Stellar game design might just be the push I need to get hooked
So yeah, Black Lotus is the most broken card from 1993, but it did have a surprising amount of competition
Regarding this piece, some of that difficulty I attribute to a minor health issue I was dealing with at the time that left me with the wonderful options of either excruciating pain or a mushy, haze-for-a-mind on painkillers
All from MTG's earliest sets and banned or restricted across most formats