Gandalf

You cannot pass! —Whenever Gandalf blocks
a creature or becomes the target of a spell you
don't control, exile Gandalf as well as that
creature or spell.
On the first light of the fifth day —{w}{w}{w}{w}{w}:
Put Gandalf from exile onto the battlefield. It
has base power and toughness 6/6 and is white
in addition to its other colors. Draw a card.