Lost Caverns of Ixalan has a bunch of new abilities coming, with Explore also making a comeback.
-
Discover {X}: exile cards from the top of your library uintil you exile a nonland card with mana value X or less. You can cast the card without paying its mana cost or put it into your hand. Then put the rest on the bottom of your library in a random order.
-
Descend {X}: triggers or enables an ability if there are X or more permanent cards in your graveyard.
-
Craft {X}: exile this card, exile any other listed card types from the battlefield or graveyard, and pay {X}. Return this card transformed. Craft only as a sorcery.
-
Explore: reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.
All good!