Thanks to the limited amount of cards in Pioneer, the heavy-hitting mill cards most would be familiar with are unavailable
For example, if youre playing a Commander like Sythis, you really want to be able to cast as many enchantments a turn so you can keep drawing cards and gaining life
You could also reanimate a hasty Griselbrand and use his Necropotence activation to chain multiple Fury of the Horde and attack phases to win that very turn
Another common way of playing with fewer people, like 3-4 players, is to draft one card and burn another (as in, removed the card from the card pool put the matches away!)
The other example is Shichifukujin Dragon, a card designed to promote the opening of a tournament center in Japan in 1996
We dont have that yet in Magic