Hidden Immunity Idol

The Hidden Immunity Idol is a twist that features in all seasons of Survivor, with purpose of it being to, one way or another, give the holder immunity when they choose to play it. The idol has influenced 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 the host 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 their idol with them (dubbed as "flushing"). Another limitation is that, the idol is only valid until a given deadline, usually a few Tribal Councils before the Final Tribal Council. It is possible for a player may hold more than one idol.

TRIVIA:

 * Hudson holds the record for most votes nullfied in a tribal and a season with Idols, at 5 and 9 apeice!
 * Hudson also holds the record for most days holding onto an idol with 15 days having the Aurum Idol