We don't know who Brendon will put up to replace Ragan.
It will be used on Thursday before the voting. As I read it, if Matt uses it, either to take himself off or to replace one nominee, he can't nominate Brendon. At this point, who he nominates will determine the vote. Right now, Enzo and Hayden want to keep Kathy and get rid of Brit, Matt and Ragan. Will they have the guts to keep Kathy, that's the question. I wonder who breaks the tie?
I think that either way if Matt has to use it, the others will know that he was lying to them no matter what excuse he comes up with.