Only certain Canon Characters are still living. Many died in the battle of Chi'bi, thus releasing their Magatama to others.
Here is the list of Canon Characters living and dead, their school and their Magatama.
Alive and Kicking
These Magatama are NOT available.
Sonsaku Hakufu - Nanyou - Sun Ce
Ryomou Shimei - Nanyou - Lu Meng
Shuuyu Koukin - Nanyou - Zhou Yu
Gakushuu - Nanyou - Yue Jiu
Rikuson Hakugen - Nanyou - Lu Xun
Kakouton Genjou - Kyoshou - Xiahou Dun
Kakouen Myousai - Kyoshou - Xiahou Yuan
Ten'i - Kyoshou - Dian Wei
Chouryou Bun'en - Kyoshou - Zhang Liao
Kan'u Unchou - Seito - Guan Yu
Ryuubi Gentoku - Seito - Liu Bei (WITHOUT the Yellow Dragon)
Chouhi Ekitoku - Seito - Zhang Fei
Shokatsuryou Koumei - Seito - Zhuge Liang
Chou'un Shiryuu -Seito - Zhao Yun
Goei - Madame Wu Rong
Deceased
These Magatama ARE available
Sonken Chuubou/ Shoukyou - Nanyou - Xiao Qiao
Ouin Shishi - Nanyou - Wang Yun
Shisonzui - Nanyou - Shisun Rai
Kannei Kouha - Nanyou - Gan Ning
Enjutsu Kouro - Nanyou - Yuan Shu
Shokatsukin Shiyu - Nanyou - Zhuge Jin
Roshuku Shikei - Nanyou - Lu Su
Teifu Tokubou - Nanyou - Cheng Pu
Taishiji Shigi - Youshouu - Taishi Chi
Ryuuyou - Youshouu - Liu Yao
Hannou - Youshouu - Fan Neng
Toutaku Chuuei - Rakuyou - Dong Zhuo
Ryofu Housen - Rakuyou - Lu Bu
Chousen - Rakuyou - Diao Chan
Kaku Bunwa - Rakuyou - Jia Xu
Chinkyuu Koudai -Rakuyou - Chen Gong
Rikaku - Rakuyou - Li Jue
Kayuu - Rakuyou - Hua Xiong
Sousou Moutoku - Kyoshou - Cao Cao (WITHOUT The Red Dragon)
Kakuka Houkou - Kyoshou - Guo Jia
Shiba'i Chuutatsu - Kyoshou - Sima Yi
Kyocho Chuukou - Kyoshou - Xu Chu
Junyuu Koutatsu - Kyoshou - Xun You
Jokou Koumei - Kyoshou - Xu Huang
Gakushin Bunken - Kyoshou - Yue Jin
Soujin Shikou - Kyoshou - Cao Ren
Ousou Shizen - Kyoshou - Wang Shuang
Ukin Bunsoku - Kyoshou - Yu Jin
Choukou Shungai - Kyoshou - Zhang He
Kakouon Shiun - Kyoshou - Xiahou En
Jun'udou - Kyoshou - Chunyu Dao
Ritsuu Buntatsu - Kyoshou - Li Tong
Moutatsu Shikei -Kyoshou- Meng Da
Gyuukin - Kyoshou - Niu Jin
Touton - Kyoshou - Ta Dun
Ukitsu - Gogun - Yu Ji
Kanpei - Seito - Guan Ping
Shuusou - Seito - Zhou Cang
Ato - Seito - A Dou (Liu Shan)
Kouchuu Kanshou - Seito - Huang Zhong
Bashoku Youjou - Seito - Ma Su
Houtou Shigen - Seito - Pang Tong
Enshou Honsho - Yoshuu - Yuan Shao
Koshaji - Yoshuu - Hu Che Er
Ganryou - Yoshuu - Yan Liang
Bunshuu - Yoshuu - Wen Chou
Denpou - Yoshuu - Tian Feng
Sonken Bundai - Sun Jian
Choukou Shikou - Zhang Hong
Choushou Shifu - Zhang Zhao
Suikyou - Shuijing
Tanfuku - Dan Fu
Baryou Kichou - Ma Liang
Gien Bunchou - Wei Yan
Kada Genka - Hua Tuo
Saji Genpou - Zuo Ci