Shirei, Shizo's Caretaker

Legendary Creature - Spirit 2/2, 4B (5)
Whenever a creature with power 1 or less is put into your graveyard from the battlefield, you may return that card to the battlefield under your control at the beginning of the next end step if Shirei, Shizo's Caretaker is still on the battlefield.¹
Illus. Wayne Reynolds

Gatherer Card Rulings [Nov 2009]

• 2/1/2005: Shirei's ability only triggers if the creature's power immediately before leaving the battlefield is 1 or less.
• 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.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/8)	Betrayers of Kamigawa (Rare)