Autumnal Explorer

Autumn Seasonal (At the beginning of your upkeep,
you may get an Autumn counter.)
Reach
As long as it's Autumn, Autumnal Explorer gets
+1/+1 and has "{1}{g}, {t}: Search your library for
a basic land card, reveal it, and put it into your
hand. Then shuffle your library. Autumnal
Explorer doesn't untap during your next untap
step."