No idea but it's doubtful, foci are supposed to be unique.
Ok, hopefully someone else that played more can answer me about foci then.
As far as I saw, only the 3 foci you have available after finishing the clock quest in Sagus are the only ones in the game. You don't get more from advancing in the game or from companions, that's all you get in my experience. They're also just mere boost to a type of gameplay, so I don't know what all the fuss is about. Are they something interesting in the PnP?
In the PnP, they're 1/3 of your character, and can have a profound effect on what you
are, ranging from "who is literally on fucking fire" ("Bears a Halo of Fire") to "who is practically the hulk with claws" ("Gazes into the Abyss"). It determines whether you're Batman or Magneto, a musketeer, witch-doctor, cyborg, rock-thrower, or a hovering drone. Since I've taken the decision to run this generally-accepted-to-be-cancer system in the near future, I've actually started (WIP) compiling a list of PnP foci
here. Note that this covers an extremely wide selection and the GM is meant to police what's available depending on the game.
And out of these, we get "You're better at talking", "You get bonuses to stealth", and "You don't suck at defense". The worst thing is that two of those,
Breathes Shadow and
Brandishes a Silver Tongue, are
actually interesting in the PnP book. The former basically turns you into a Shadewalker or Shadowdancer type deal, while the latter is written as to sound like you're literally poetry incarnate - it's not just that you're better at talking, it's that you're basically Hitler if he'd been a poet instead of a world savior.
And while I have only played extremely little Tides of Numenera so far (swamped in school work), I cannot imagine that Foci can be shared. Each CNPC has a unique Foci, and even in the PnP it's repeatedly emphasized that only a single player should ever have a specific Foci. There's lots of Foci (in the PnP) that have abilities that affect your allies, but that's not the same, and there's a very particular, specific foci ("Forges a Bond", which is not in ToN) that allows you to share Foci with someone you've made a life-bond with. And since we know that you only get to pick one out of three foci that are thrown at you as part of a quest in ToN, I wouldn't get my hopes up - even though
Forges a Bond would be a very appropriate Foci for the game (if worked into CNPC dialogues).
All in all, ToN is based on a system that is mostly recognized as being "not that great", yet it
still fails to do it justice, even on it's strongest points, in addition to not delivering something that's been described as being part of the core game during the Kickstarter pitch. Foci being an afterthought in a Numenera game is not OK.
