Elder Shaman, Ner'zhul

Future Sight-The first spell an opponent would
cast of the following types, artifact, creature,
instant, sorcery, enchantment, is revealed
only to you and you may choose to negate
that spell, if you chose not to negate that spell,
the following effect will take place, if the spell
was an instant or sorcery, the spell cannot
target you or anything you control, if it was
a creature, that creature cannot attack you or
block creatures you control for as long as you
control this