Magurath, Ominous Shadow

Flying, flash, menace
Creatures your opponents control in play and
not in play lose flash and menace, and can't gain
flash or menace.
{u/b}{w/b}{w/u},{t}, reveal your hand: target creature in
your hand gains your choice of flash or menace
for the rest of the game, and Magurath doesn't
untap during your untap step.