What board game does this die belong to?
The die belongs to the 2013 version of Taboo, which added the new "game-changer die". You can see it in the picture below along with the other components of the game:



As a game variation, you can roll the die before each round and have a chance to play with an alternate rule


T: Play with standard Taboo rules
Roman Column: You must be perfectly still, like a statue, while giving the clues. The person with the buzzer must turn the cards for you.
Two People: Both teams guess as you give the clues, but still give tallies separately
Clock x2: You get double the time and turn over the timer the first time it runs out.
One person: Only one person can guess during the round, instead of your whole team.