Curly Brace, Explorer Bot

Reach Caves you control have “{gu}, {t}: Shuffle this permanent and up to two cards from your graveyard into you library, then draw a card.” Whenever a Cave you control enters, Curly Brace explores. (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.)