Text (TS+errata): 2/2. ; Sacrifice ~this~: When target creature is put into your graveyard from the battlefield this turn, return that card to the battlefield. [Oracle 2009/07/08]
If it targets a token creature, it will not return to play. [Time Spiral FAQ 2006/08/30]
It can target itself, but the ability will be countered when it resolves because the target won't be in play at that time. [Time Spiral FAQ 2006/08/30]
