Elementary, My Dear

Whenever you draw a card by sacrificing a Clue, put a Knowledge counter on this card.
{1}, Sacrifice a permanent: Remove a Knowledge counter from this card. Any player may activate this ability.
Remove five Knowledge counters from this card: Detain target permanent an opponent controls. Activate this only during your turn.
If you would draw a card by sacrificing a Clue and there are no cards in your library and this card has 10 or more Knowledge counters, you win the game.