Dulugon, Eternity Realized

When Dulugon, Eternity Realized enters the battlefield, sacrifice all lands you control unless you pay {w}{u}{b}{r}{g}{c}.
Trample, indestructible, shroud
Eldrazi spells you control cost {5} less to cast.
Time and space are meaningless to it. Entire planes crumble to nothingness in its wake. The end is nigh.