When Imskir Iron-Eater enters the battlefield, you draw X cards and you lose X life, where X is half the number of artifacts you control, rounded down.
![3](/Handlers/Image.ashx?size=small&name=3&type=symbol)
![Red](/Handlers/Image.ashx?size=small&name=R&type=symbol)
, Sacrifice an artifact: Imskir deals damage equal to the sacrificed artifact's mana value to any target.