Golos, Far Seeking

When Golos, Far Seeking enters the battlefield,
search your library for a land card and put that
card into your graveyard. Then shuffle your
library.
Threshold — {w}{u}{b}{r}{g}: Return target
permanent card with converted mana cost 5 or
less from your graveyard to the battlefield.
Activate this ability only if there are seven or
more cards in your graveyard.