Simulacrum | Magic: The Gathering
Formats Simulacrum is Legal in
Official Oracle Text for Simulacrum
Official Rulings for Simulacrum
10/4/2004 : This is not damage prevention or redirection. It actually is life gain and newly dealt damage.
8/1/2008 : Simulacrum is the source of the damage. If an effect needs to know a characteristic of the damage's source (Protection from Black, for instance), it will see the damage coming from Simulacrum.