Cannelure

Cannelure is the mentor of Bio-Trunks. When Bio-Trunks was battle dammaged from his fight aginst Super Saiyan 5 Goku Cannelure helped Bio-Trunks recooperate. He later tought Bio-Trunks how to use a sword properly and alchemy. After training Bio-Trunks, he was killed by his old student. Bio-Trunks realized that Cannelure had one last secret to alchamy so he tryed to revive him with alchamy, but failed. Bio-Trunks than learned how to control alchamy without a transmutation circle.