Hidden Immunity Idol

The Hidden Immunity Idol is a twist that features in all seasons of Survivor which do NOT feature the Back to Basics twist. The purpose of it is to, one way or another, give the holder immunity when they choose to play it. The idol influences many of the contestants' strategies, whether they utilize the object, or defuse its powers.

Overview
The idea of the Hidden Idol is that the owner is able to get Individual Immunity without the need of winning an Individual Immunity Challenge. The idol, when played at Tribal Council after the votes are cast and counted but before one of the hosts reads the votes, negates the votes that the holder would receive from the votes that were cast prior to its play at Tribal Council. Despite its potential to make its owner survive longer in the game, it can only be used once (where the idol will be either re-hidden or discarded after its use). With this, owners should be careful about divulging information about possessing one and/or when to use it, because a player can still be eliminated with the idol, thus going home bringing his/her idol with him (dubbed as "flushing"). Another limitation is that, the idol is only valid until a given deadline, usually Final 5. It is possible for a player may hold more than one idol.

Appearance
Similar to the Immunity Idol and the Immunity Necklace, the Hidden Immunity Idol is a small ornate talisman that is designed depending on the season's theme and/or location. Other idols are designed like small necklaces or bracelets.

Format
To find Hidden Immunity Idols easier, clues are provided to castaways. As the season progresses, more clues will be provided, regardless if the idol has already been found or not. The way that clues are given and how the idol is found varies from season to season.

Effective Use History
This list contains all castaways who had used their Hidden Immunity Idol(s) at a time that they would have been eliminated/tied for having the highest votes if they had not played it, eliminating the castaway with the next highest number of votes.