Bableweed

This plant looks like a greenish herbal mixture. It has a sharp smell and the aroma of Bableweed can be smelled within 10 feet of anyone who has smoked it in the last four hours or is carrying it on their person. Any creature that needs to breath to remain alive can smoke Bableweed and have the effect of the Comprehend Languages spell for 1 hour. 

A single bag has 1d4+1 charges.  Each charge can be shared by as many as five people. To do so you must take a puff or two and then pass it to the next person. 

Notes: Set: Constitution Score, Buff, Utility