MIL, Chrome Conqueror

Flying, Vigilance

{t}{w}Tap target creature.
{t}{1}{u}Target creature can't be blocked this turn.
{t}{2}{b}Each player sacrifices a creature.
{t}{3}{g}Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{t}{4}{r}Sacrifice an artifact: MIL deals damage equal to the sacrificed artifact's mana value to any target.