You and at least one other individual consume the foultasting brew, dregs and all. At the end of the ritual, you feel uncommonly close, as if you shared some bond with your ally.

Component Cost: 135 gp
Market Price: 250 gp
Key Skill: Arcana (no check)
Level: 8
Category: Divination
Time: 10 minutes
Duration: 24 hours

You and up to eight ritual participants gain a powerful connection to one another. For the ritual’s duration, you know the current hit point total, healing surges remaining, and the nature of any persistent conditions affecting any other ritual participant. The connection persists at any distance except across planes.

Published in Forgotten Realms Player's Guide, page(s) 146.