Squirrel Pathlighter

Skulk
Whenever Squirrel Pathlighter attacks, you may
exert it. If you do, it explores, then it explores
again. (An exerted creature won't untap during your
next untap step. Then 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 on top or into your graveyard and
repeat this process.)