Meliana, the Last Light

When you cast Meliana, the Last Light, return six cards from your graveyard to your hand then shuffle your graveyard into your libary.
When Meliana enters the battlefield, each player reveals their hand and discards all instant, sorcery and demon cards in their hand. Until end of turn you may cast spells from your hand without paying their mana cost.
Flying, Lifelink, Indestructible.