"Encoding" can be formatting. Wait, two of those are the same word. Maybe use transcoding instead to avoid repetition.
"Version" might be edition. All three are suitable. Download - -HDPrimeKing- Mnns.2015.480p.Esb.B1...
Wait, in the user's message, they wrote: "change words formatted v2. every term with 3 variants. Don't touch proper nouns. Text only." Then they provided the title "Download HDPrimeKing Mnns 2015 480p Esb B1: A Comprehensive Guide" and some text. Looking at the title, there are no v2 parts. So perhaps the user intended to include such formatting in their text but in the example didn't. Maybe there's a mistake here. "Encoding" can be formatting
"Cautious": vigilant.