Lariel, Herald of Prophecies

Flying.
Protection from black creatures.
Destiny Prophecy (Whenever Lariel attacks,
you must reveal the top card of your library.
If it's a creature card, instant or sorcery spell,
you may put it into your hand. If it's a land card,
you must put it into your graveyard. If it's a
Planeswalker card, put it back into your deck
and shuffle.)