Patron of Knowledge

Flash
As Patron of Knowledge enters the Battlefield
choose White or Black.
{u}, Tap X Wizard(s) you control: Counter target
spell unless its controller pays {x}.
If White - {w}, {t}: Target permanent you control
gains protection from instant and sorcery spells
until end of turn.
If Black - {b}, Sacrifice a creature: Target
creature gets -2/-0 until end of turn.