In a lot of situations, putting something on the bottom of the library is much harder to overcome than putting it in the graveyard
Wrap Up Tyvar the Bellicose | Illustration by Jarel Threat A good elf deck is comprised of good enablers, lords, and payoffs
Atlas is a decent card, if a little narrow, but this is the perfect place for it
From hard stax pieces like Elesh Norn, Mother of Machines, Drannith Magistrate, and Archon of Emeria to softer disruption in Thalia, Guardian of Thraben or Ranger-Captain of Eos, white disrupts and stops your opponents better than any color except maybe blue and its countermagic
Playing Xorn on curve is a mistake unless you are creating treasure tokens by attacking with a creature like Hoard Robber, or are casting an Instant that turn which produces a Treasure token