Dr. Strange, Sorcerer Supreme

Flying, Ward {2}
Whenever you cast an instant or sorcery spell,
each opponent reveals their hand. You choose
the name of a non-land card revealed this way.
Your opponents can't cast spells of the chosen
name unless they pay {2}.
{t},{w}{u}{g}, Instant and sorcery spells you control
cannot be countered until the end of turn.