Ryushikaze
Deus Admiral Parsimonius
Corrections- Sephiroth did not die 5 years ago. He enterred the lifestream and began amassing its power using the knowledge he gleamed using Jenova's power of memory absorption.
Sephiroth is in control of Jenova, and this has been explicitly stated in the Ultimania, so barring an official retcon, it stands.
That said, you are correct that the Sephiroth seen throughout the game is not the genuine article. It is a reproduction made by sephiroth using the Mimicry ability of Jenova. But it is controlled as a puppet by Sephiroth.
Also, Never trust a bradygame guide. They are not authoritative sources. As a rule, only in house or directly linked products are legitimate sources.
Sephiroth is in control of Jenova, and this has been explicitly stated in the Ultimania, so barring an official retcon, it stands.
That said, you are correct that the Sephiroth seen throughout the game is not the genuine article. It is a reproduction made by sephiroth using the Mimicry ability of Jenova. But it is controlled as a puppet by Sephiroth.
Also, Never trust a bradygame guide. They are not authoritative sources. As a rule, only in house or directly linked products are legitimate sources.