Albedo, The Overseer

As long as you have one or fewer cards in hand, Albedo, The Overseer has vigilance and haste.

Whenever Albedo, The Overseer attacks, look at
the top six cards of your library. You may exile a legendary creature card from among them. Put the rest on the bottom of your library in a random
order. Until end of turn, you may cast the exiled card without paying its mana cost.