Last tale, sassafras was given out with the Trader Malaki event. It was described as a "rare herb" from Malaki's homeland, and the only source of it was the event. I would assume this is the same sort of thing (but who knows, maybe not). ~Knives
The Tale 1 page has information on Spice, including Korerima. Perhaps it has the same effect? -Jeff
"Rare herb" Korerima from the Mutton Festival has cooking coordinates -152, 490.5. It increases strength and speed and decreases endurance. Its potency at time of test (Sept 20, Shemu III-12) was only 2296, surprisingly low. It is not a smokable herb, and apparently has the potency of a non-herb cooking ingredient that is not used much -- Kummick