Viktor, the Machine Herald

When Viktor, the Machine Herald enters the battlefield, search your library for a non-creature artifact with mana value X, put it onto the battlefield, then shuffle. As long as you control
Viktor, that artifact has hexproof. Exile that
artifact when Viktor leaves the battlefield.
Whenever you activate an ability of an artifact
that isn't a mana ability, Viktor gets +1/+0 until
the end of turn.