Morphic Counter

Counter target spell unless its controller pays {1}.
{2}{u}: Switch an instant spell or Morphic Counter in your hand with one you control. (If the original spell has a legal target for the new spell, that target becomes the target of the switched spell. If that target is illegal, choose a new target as you switch the spells. If the original spell is the target of spells or abilities, the new spell becomes the target. X is
0 for any switched spell.)