Pick your poison

Sacrifice a creature: Add .

Whenever this creature or another artifact creature dies, you may untap target artifact.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Enchant creature Enchanted creature has ": Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."

When this creature dies, it deals 2 damage to any target.

When this creature dies, create a 1/1 colorless Phyrexian Myr artifact creature token.