The mushroom in this episode: https://en.m.wikipedia.org/wiki/Podostroma_cornu-damae

I feel like the death cap mushroom would just end the whole series with “Everyone died” conclusion, like some boring Greek tragedy. Too bad it’s not native in ancient China. Quoting Wikipedia:

• Death caps have been reported to taste pleasant.
• 30 grams (1.1 ounces), or half a cap, of this mushroom is estimated to be enough to kill a human.
• Symptoms of death cap mushroom toxicity usually occur 6 to 12 hours after ingestion.
• In two-three days you feel better, but your liver is already goooooone, and there’s no treatment except for a liver transplant.