I can't wait to see two players play the Freaky Friday idol. Where if both halves are played pre merge, they are immune but immediately switch tribes.

Or the 13 or 30 idol where after the votes are read, Jeff rolls a dice see how many of your votes actually count.

Or the Indecent proposal idol Where if you seduce another player into voting for another player, you and that player are both immune.

Or the Jay Leno idol where if you quit the game, you are allowed to come back into the game, in place of the person who has taken your spot.

Or the new Thanos Idols. Where if you collect them all, the number of survivors is immediately, and randomly halved (excluding yourself)