Hrmmm, so by rankings, I think Dongxuan Sutra now exceeds the black stone.
Han Sen's cheat code:
1. Dongxuan Sutra
2. Black Stone
3. Silver Fox
4. Submarine Shelter
5. Unknown Gourd
Hmmm.. i feel like the super creature life essences would come in all of the elemenetal flavors and Han sen's the only one who's gonna be able to complete the set because he can simulate all elemental qi gongs with his DS...