Archmage Emeritus didnt even see much play in Standard, and MTG was even slower then, so its hard for me to see this working in other formats
You just need a minimum of one creature on your board that will become your Ring-bearer and due to how The Ring mechanics work, said creature will meet the legendary condition for your tutor to be valid
All affected players should first make the choices, and only then the effects happen all choices first, then all effects simultaneously. And you wouldn't be too wrong for thinking that
Conversely, there are also sellers undercutting the early market, with some copies of the card selling for $9,800
The Ozolith needs to pick its target the moment the trigger goes on the stack, if you try to activate Inkmoth while in your beginning of combat step, it will be too late
Each creature you have on the battlefield also gains one toxic until the end of your turn