In modern-day Limited formats, you really need to start playing on turn two or else youll be in trouble when your opponent has a fast draw
Scry A low impact mechanic that simply helps up the consistency of your draws and has no impact on the gamestate at all
It can effectively shut down graveyard strategies in any format, from the Dredge deck of Modern to reanimator commanders such as Sedris, the Traitor King or Meren of Clan Nel Toth (and it can be cast for free in the opening hand)
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Artifact As Pithing Needle enters the battlefield, choose a card name
You probably won't count on Yawgmoth too much if your only concern is to draw cards, but when looking at the whole package, Yawgmoth, Thran Physician is hard to beat