When Denise was clearly going to get voted out and got Sandra to "sell" her an immunity idol for 2 fire tokens (1 to be paid before the Tribal Council, and 1 to be paid after), then during tribal council played one immunity idol for herself, and another one (that no one knew she had) for Jeremy, then proceeded to negate the votes of every single player who had all voted for her, and used her one vote to get rid of Sandra. And all of that cost her only 1 fire token b/c she didn't have to give Sandra the second tokens she owed her.

I wasn't a big Denise fan up to that point, but she has won my loyalty with that move alone. One of the biggest blind sides ever and she did it solo without assistance from anyone else. Brilliant!