Elesh Norn, Five Suns Empress

Vigilance, Protection from all colors
Permanents are artifacts in addition to their
other types. The same is true for permanent
spells and permanent cards that aren't on the
battlefield.
{p/w}{p/u}{p/b}{p/r}{p/g}: Search a library for an artifact card
that shares a mana value with an artifact on the
battlefield and put it on the battlefield.