The correct answer to a barbarian's riddle is to choke on your cleverness and die.

Stranglehold

Your opponents can't search libraries.
If an opponent would begin an extra turn, that player skips that turn instead.

Secret Lair Drop

"Control the Halo and you control the whole city."
—Jetmir

Judge Gift Cards 2022

Commander Anthology

Commander 2011

Effects that instruct your opponents to reveal or look at cards from the top of their libraries will still work. Only effects that use the word “search” are affected.

An “extra turn” means a turn created by a spell or ability. It doesn’t refer to a turn taken in a sanctioned tournament after the time limit for the round has expired.

If an effect says “Search your library . . . then shuffle your library,” your opponents shuffle their libraries even though they can’t search.

If an effect says “You may search your library . . . If you do, shuffle your library” or “You may search your library . . . then shuffle your library,” your opponents can’t choose to search, so they won’t shuffle.

If an opponent’s extra turn is created while Stranglehold is on the battlefield, but Stranglehold leaves the battlefield before that turn would begin, that opponent takes the extra turn as normal.