Cyber Shinobi

Ninjistu: Sacrifice an artifact ( Sacrifice an artifact, return an unblocked attacker you control to hand: Put
this card onto the battlefield from your hand tapped
and attacking.)
Whenever Cyber Shinobi deals combat damage
to a player, that player mills cards equal to the
number of artifacts and creatures in all graveyards.
"I have created for you the ultimate assassins. In
return, I ask for a portal to the Spirit World."
- Tezzeret.