Serra Avatar | Magic: The Gathering
Formats Serra Avatar is Legal in
Official Oracle Text for Serra Avatar
When Serra Avatar is put into a graveyard from anywhere, shuffle it into its owner's library.
Official Rulings for Serra Avatar
7/1/2012 : Serra Avatar's power and toughness are constantly updated as your life total changes.
7/1/2012 : The ability that defines Serra Avatar's power and toughness works in all zones, not just the battlefield.
7/1/2012 : If Serra Avatar is no longer in your graveyard when its triggered ability resolves, you won't shuffle your library.