Promise of Bunrei

Oracle Text

When a creature you control dies, sacrifice Promise of Bunrei. If you do, create four 1/1 colorless Spirit creature tokens.

Card Rulings

6/1/2005 Promise of Bunrei must be sacrificed in order to get tokens. If multiple creatures are put into a graveyard at the same time, only the first triggered ability to resolve causes Promise of Bunrei to be sacrificed and therefore put tokens onto the battlefield.