Gletasha, Veteran Charter

When Gletasha enters the battlefield, search
your library for a basic land card and reveal it. If
it shares no basic land types with lands you
control, put it onto the battlefield under you
control. Otherwise, put it into your hand.
{t}: Chose a basic land type among lands you
control. Target creature you control gains
landwalk for that basic land type until end of
turn.