Tribal, aggro, and reanimator strategies are just a few of the directions you can take a Mardu deck
It's not like there's an archetype that relies on low-cost, low-to-the-ground creatures to win games swiftly, right
Under that policy, all new cards and printings with new artwork were first printed in black-bordered sets, which were manufactured in limited quantities
Cavern-Hoard Dragon Chief: A 6/6 with flying, trample, and haste that can be cast for as little as two mana
You open and keep all cards in those packs, which become your pool. Any number of players can participate in a Sealed deck event and there's a lot of variance depending on how lucky you are
I could go on for days, but I need to make room for dinner