Text (GP): 8/5. ; {Tap}: ~this~ deals damage equal to its power divided as you choose among any number of target creatures. Each of those creatures deals damage equal to its power to ~this~.
Use the power of this card at the time you play this spell to decide how much and where damage is divided. [Guildpact FAQ 2005/12/22]
Use the power of the targeted creatures at the time this spell resolves when deciding how much is dealt back. [Guildpact FAQ 2005/12/22]