mtg untap artifact cards Magewright's Stone The Brothers War Retro Artifacts (BRR) #119 Illustrated by Warren Mahy Magic Tezzeret, Cruel Captain

Also when you are concerned about early tempo you are also likely going to be concerned about life and so not having the painless cast option does detract from the appeal of the card

Scavenger Grounds is a freebie in any deck that can support a few colorless lands

Kalitas, Traitor of Ghet is another potential mirror breaker

Before these cards were banned, virtually every Modern deck was playing Treasure Cruise, Dig Through Time, or both

The most common of those is weather to use on a low power target to gain immediate tempo or save it to deal with a card that ruins you

It lets you find anything you want but tucks it three draw steps away, so you want some extra draw spells to get it in your hand quicker