Levia-Valoo, Sky-born Deity

Eminence- As long as, Levia-Valoo, Sky-born Deity is either in the command zone or on the battlefield, creatures you control cost {1} less to cast and creatures your opponent controls cost {1} more to cast.
Flying, lifelink
{t}: Add {g}{w}{u}, Levia-Valoo, Sky-born Deity doesn't untap during your next untap step.