Hijiku's Great Sky Cities

{t}, Exert this card: Add {w}{u}{b}{r}{g}
and untap 5 other lands.
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"Once there was a land of pure beauty. It was ravaged by a power-hungry beast, seeking only the finest warriors who would do anything for their master, so he came to a beautiful land. Gods fell, humanity almost went extinct, and the land outside one small city was demolished. Then some heroes came to defend our lands, but were beaten back, and we were left with nothing. We made H