Hostage of Thought

Target opponent reveals cards from the top of
their library until they reveal an instant or sorcery
and exiles it. Put the rest in their graveyard.
Altercast {u}{b} - You may pay an additional {u}{b} when you cast this spell. If you do, instead
search target opponent's library for up to two
instant and/or sorcery cards and exile them.
Opponent shuffles their library afterwards.
An alternative way to be alone with your thoughts.