Text (AQ+errata): Whenever an artifact you control is put into a graveyard from the battlefield, if it wasn't sacrificed, you may pay {3}. If you do, draw a card. [Oracle 2009/07/08]
Can be used on itself because it can trigger on its own trip to the graveyard just like an animated Soul Net can. [D'Angelo 1996/10/01]
Extended tournaments (see Rule 913) have always banned this card.
Note - It is of type Artifact, not Poly Artifact. [Oracle 1998/07/01]
