Sense

Choose one:
•Target an instant, interrupt or sorcery spell.
Reveal the top cards of your library until you
reveal a white creature. If its mana cost is greater
than the mana cost of any creature target spell's controller has in play, target spell is countered.
Shuffle the revealed cards back into your library.
•Target instant spell named Alter is countered.
"I sense a great disturbance..."