"Forbidden" looks pretty good for me. Thanks, Gemini.
Hmm, I'm not sure if "Confusion" is the appropriate term for "madowasu". The Materia does have the Confuse spell, but it also has the Berserk spell. No one gets confused with Berserk, but the affected target attacks uncontrollably.
I did some Google search for the term "Inseki", and I found out that Square translated it as "Starfall" many times, but this is Emperor Mateus' (FF2) signature attack. Do you think that "Starfall" looks good, or should I leave as "Meteorite", the literal translation?
Do you think "ridatsu" is best translated as "Quit"?
I don't think "Critical" is the best name for "hissatsu" (ひっさつ). There's already a status effect named as "Critical" in my retranslation, which was the Near Death status. Maybe "Finisher"?