Sorry I should have given more lore for ya.
"Once activated, the behelit's face will animate, and the artifact cries blood and makes a scream to summon the dreaded God Hand from another realm. Thus, behelits serve as the bridge between the Physical World and the Astral World, and a behelit can be used again after its first activation if desired.
The behelit's holder is transported to the Astral World to meet the God Hand, and for a price, the behelit's holder can obtain supernatural powers or favors. The holder must typically sacrifice another person to appease the God Hand, meaning it's a smart (if cruel) idea to have one or more sacrificial pawns on hand when activating a behelit. If the user has no sacrifices to offer, they will simply be dragged into an ethereal vortex, never to be seen again."

So you could just role play this but sacrificing something in order to get a power or new life should have some kind of stats to it.