Riko, Abyssal Seeker

Whenever Riko, Abyssal Seeker enters the battlefield or explores draw two cards. (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.)
{2}{u}{r}, {t}: Look at the top three cards of your library. Put one of them into your hand and the
rest into your graveyard.