You can using the phasing to protect Tidus and other important cards, and there are tons of activated abilities that are worth countering
Similarly, effects like Seedborn Muse will untap The One Ring in each opponents turn too, so you can draw a card from it for every players turn
It just feels like there will be enough times where playing this is either a wash or actively bad for you This will make a 1/1 on a decent number of turns and it has passable stats You probably need at least two counters before this feels like its worth it, and I think thats definitely doable
If youd like one without having to remortgage your house, youll need to go digital
As is, its just too hit-or-miss for me
Notably, if Streetwise Negotiator (or the creature that gains its ability) fights, it uses its actual power to determine how much damage it deals