Miner's Guidewing
From The Lost Caverns of Ixalan set
Miner's Guidewing
Creature — Bird
1/1
Flying, vigilance
When this creature dies, target creature you control 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 that creature, then put the card back or put it into your graveyard.)