The most fun I had was a company MTG bracket where we opened a new pack once a week. We'd keep the same cards throughout the whole block (3 sets back in the day

The most fun I had was a company MTG bracket where we opened a new pack once a week. We'd keep the same cards throughout the whole block (3 sets back in the day, so quite a while). Trades were allowed but only between the same rarity. So everyone had to build a deck with (roughly) equal power, and had to think of a relatively original deck using the cards available to them. There was still some metagaming. Getting ahold of mythics had a greater degree of randomness, and if you had a buddy that was running a separate color deck you could effectively pool cards.