Elesh Norn, Praetor Queen

Vigilance, Innovate 3 (You may sacrifice 3
target artifacts you control instead of paying
this card's mana cost)
Whenever you Innovate, create X 2/2
colorless Horror artifact creature tokens,
where X is the number of Artifacts in
your graveyard.
"Phyrexia's verson of innovation is a lot
darker than everyone else's"