Alastor, Master Detective

{t}{w}{u}: search your library for a case, reveal it,
put it into your hand, then shuffle. Activate only
when a crime was committed against you this turn.
Whenever a case is solved, get an emblem
with "Whenever you sacrifice a clue,
each opponent loses 2 life and you gain 2 life"
I knew the answer from the beginning,
now i just need to collect the clues.