Atriio, Ley-Born Ritualist

Whenever a Naga you control deals combat
damage to a player, look at the top card of that
player's library. Until end of turn, you may
look at and play that card.
{u}{b}{g}, Exert a Naga: Each player mills cards
equal to the exerted creature's toughness. Until
end of turn, you may play land cards from your
graveyard.