As always, YT and Google are useless cuz everything is from 10 years ago. Even recent uploads are just decade old patches and reuploads.
I saw a Hunter do a Disengage trick to bug the fight out to make ads not spawn, but i can’t do that as a pally. With a 7 second CD on destroying each egg, about 50 eggs to destroy, and ads piling up and killing Razor, is this even possible anymore???
You actually don’t need 2 people in party to convert to raid in order to enter BWL.
Go to Group Finder, click on Premade Groups > Raids. Then hit the “Start a group” button.
Click on “Classic Raids” in dropdown menu, and BWL on second dropdown menu beside it. Put anything as the title and then click on “List Group” > Sign up.
Now once you’ve done that right click your portrait and hit “Convert to raid”.
Razorgore was nerfed in patch 5.1 (pandaria) to make it more easy to solo, including increasing his health, reducing the damage he takes, lowering the destroy egg cast time from 7 seconds to 3 seconds, and removing knockback on the mind control channel when taking damage.
Can confirm it is soloable in cata classic with out bugging the encounter, though it is challenging. Completed this as a prot warrior with 346 ilvl. As another someone else stated the healing aggro was needed