Ricky, Bound Pathbonder

When this creature enters the battlefield, you
may search your library for a basic land card,
put it into your hand, then shuffle your library.
Legendary spells you cast from your hand cost
{w}{u}{b}{r}{g} less to cast.
Legendary cards in your graveyard have retrace.
At your end step, if you control no other
legendary creatures, exile Ricky, Bound
Pathbonder and return it to the battlefield at the
beginning of your next upkeep.