Black lotus, channel, fireball. That was the crazy meta abuse with a 1 turn kill. By the third turn you'd have to have a terrible draw in order to not win.

I thought, though I could be wrong because it was a thousand years ago, that the 4 card rule came between beta and unlimited, but it could have been unlimited and revised. I started with beta and it definitely wasn't in effect then. Folks coming at you with a hand full of lotuses, dark rituals, moxes, and fireballs.