Kanon of Gemini, of the Saint Seiya Saga

My favorite Animé character is Kanon of Gemini, from the Saint Seiya saga, because his participation in the story is central. He was the great conspirator in the 12 houses of the Sanctuary of Greece to promote in his twin brother, Saga, desires to take power in this sacred place and to awaken the Sea God Poseidon, but then redeemed himself with Athenas before she was sacrificed to avoid fruitlessly the attack of the God of the underworld, Hades.
Its power, Galaxies Explosion, is one of the most powerful and allowed to defeat the powerful Rhadamanthys by immolating himself with it to achieve that the bronze knights, led by Seiya, could advance in the Castle of Hades and thus defeat it later.