Aodh, Hobgoblin Paladin

Flying, Lifelink
At the end of each turn, if an opponent was dealt
damage this turn, you may exile the top card of
your library. You may play cards exiled this way
until the end of your next turn.
At the end of each turn, if you gained life this
turn, you may choose a card you own in exile
and put it on top of your library.