Sherlock Holmes, Detective

Damage dealt by Sherlock Holmes and
non-creature sources you control causes you to
create that may clue tokens.
Sacrifice fifteen clue tokens: Name three
non-land cards. Target opponent reveals any
cards from their hand with the chosen names. If
they reveal all three, they lose the game. Activate
this ability only as a sorcery.
"It is my business to know what others don't"