mtg equipment draw card Paleontologist's Pick-Axe (Extended Art) [The Lost Caverns of Ixalan C draw card artifacts mtg artifact

That might be Luminarch Aspirant or Innkeeper's Talent just spicing up your Cube deck with some extra power, or it could be a dedicated build-around seeking to exploit Winding Constrictor and Ezuri, Claw of Progress

Chorale of the Void is sweet for Enchantress brews, and paying two mana for this on a Killian seems like quite the deal

Omnath can deal damage to any pesky creature in his way, and Gitrog and Karametra can PutrefyPutrefy and Path to ExilePath to Exile anything they don't like

Eldritch Evolution : A versatile option for evolving your board state

On top of that, Bloomburrow also gave us Overprotect, which adds Hexproof and Indestructible on top of Trample for no extra mana cost