Ellvanwin the Inventor

First Strike, Flying
Fabricate 2
Sacrifice an artifact: Search your library for an artifact card and put it into your hand, then
shuffle your library. If the sacrificed artifact had
mana value five of greater, instead search your
library for an artifact card and put it onto the battlefield tapped, then shuffle your library.
Whenever an artifact enters the battlefield under
your control, Ellvanwin deals damage equal to its
mana value to any target.