Tribe Switch

A Tribe Switch is a game-changing twist in Survivor. This twist sends members from one tribe to the rival tribe and vice versa

Classifications
A tribe switch could be classified as one or more of several types:
 * Swap - Where the switch is done in a way ensuring that each tribe exchanges the same number of castaways. Among Survivor fans, all Tribe Switches are commonly referred to as "Swaps" regardless of the specific type.
 * Shuffle - A shuffle happens where each tribe could have a different number of new members. A shuffle could be a random draw or be systematic, typically through a Schoolyard Pick.
 * Absorption - An absorption happens if one tribe gets dissolved, with its members being the only ones eligible to switch and are distributed to the remaining tribes.
 * Conquering - A conquering happens when the remaining members of a losing tribe get absorbed by the other tribe, and only one tribe is left (i.e. no merge).
 * Disband - Typically a variation of the shuffle, it happens when a tribe gets dissolved, then a shuffle is done to put the castaways on the remaining tribes.
 * Expansion - An expansion happens if an Auxiliary Tribe is introduced in a two-tribe season. Typically, a shuffle is then done after.
 * Mutiny - A mutiny happens when castaways from both tribes are offered an option to join a rival tribe.

Twist History
Survivor: Oahu On Day 8, at the final 8, it was announced that a random shuffle would happen. Bull and Mel were the only castaways to switch tribes.
 * Type: Shuffle

Survivor: Ghost Island On Day 7, it was announced that a tribe swap would occur. Eiichiro and Kung were randomly selected as tribe captains, they would privately select 4 castaways, from the other tribe to join their tribe.
 * Type: Swap

Survivor: India On Day 9, Mandir was disbanded, and all the castaways were randomly shuffled into Baahar and Shakti.
 * Type: Disbanding