Set Up the Heist

Sneaky {u}{r}{w} (During the declare blockers step
after defending players have declared blockers, if any,
you may cast this spell as though it had flash by
paying {u}{r}{w} plus removing an unblocked attacking creature you control from combat and untapping it.)
Investigate three times. If this spell's sneaky cost
was paid, sacrifice any number of Clues then
draw that many cards and put a shield counter on
up to one target untapped creature.