Grand Insquisitor Leberhart

Eminence - At the beginning of your upkeep,
if Leberhart is in the command zone or on the
battlefield, target opponent chosen at random
becomes a suspect.
{w/b} or {g/u}: Target human creature gains skulk
until end of turn, use this only once each turn.
At the beginning of your endstep, if no player
is a suspect, you investigate.