There's a Riful thread already, but that has nothing to do with this... and I don't think any other threads were made for this either.
What Riful wants... we all know what it is, but for those who don't: "Lemme awaken some Youki readers." I reread the chapter where she first presents the idea to Clare (making that the second time I read it), and this theory of mine hit me after I got to the line "in other words, those who can manipulate Yoma energy, if even just a little".
Going back in time for a second, let's revisit Clare v Rigaldo. Rigaldo... the Silver Eyed Lion King... extremely fast, ripped through 3 Claymores with just a swipe of his gigantic claws, slaughtered Flora (boo!!)... Anyway. When Clare awakened to fight him, Rigaldo was too fast for her to be able to do anything really useful. She kept telling herself she needed to speed it up, and her legs turned into something not unlike Cougar Straight's from S.Cry.Ed... She needed control over that speed and her arms turned into items doubling as weapons that were ALSO capable of anchoring her when she needed to stop (at least, that's how I saw it).
Back to Riful... Clare's capable of reading into Youki extremely well. Is this the "something interesting" that she found? That those who can read Youki at extreme distances are capable of manipulating their own enough for their own benefit during Awakening? Hell, does the extent to which a Claymore can do this matter at all or does the only prerequisite happen to be that they can read Youki?
Has Riful's plan become "let's get an Eye [or someone similar] to go against Priscilla and keep changing until she gets enough power to turn the tide"? Would Riful try to fight herself? And finally, does someone fitting what Riful wants stay stuck to that one Awakened form obtained during this adaptive phase, or is their ability to change capable of giving them more than one form as an awakened?
Of the people we know to possess this ability, one's dead, one's renegade, one's assumed dead, and the other's in the organization. From what we know of them, though, I'll try ranking them:
- She can not only read Youki from FAARR off, but is even capable of controlling others (though to a lesser degree than the Awakened from Pieta).
- She's essentially a psychic with her ability. Galatea only goes above her because she's an eye.
- The watered-down Teresa... still works, though.
- Whoever the new eye is...
The ranking is there purely for reference, and has nothing really to do with the theory.