Shirei, Shizo's Caretaker | Magic: The Gathering
Formats Shirei, Shizo's Caretaker is Legal in
Official Oracle Text for Shirei, Shizo's Caretaker
Official Rulings for Shirei, Shizo's Caretaker
2/1/2005 : If Shirei leaves the battlefield and returns to the battlefield after a creature with power 1 or less is put into your graveyard, it won't return that creature to the battlefield under your control.
2/1/2005 : Shirei's ability doesn't affect creatures put into your graveyard before Shirei enters the battlefield. The "if" clause modifies the conditions on which creatures are returned.