Tool Machinist

When Tool Machinist enters the battlefield, you
may search your library for an artifact card with
converted mana cost 2, reveal that card, and put
it into your hand. If you do, shuffle your library.
"It was only after I had gone on to greater magic
that I recognized two of the great Thran's secrets.
Universal measurements and standardized parts to
unite everyone's work with the same tools." - Urza