Kajiuti, Mother Gloaming

Kajiuti, Mother Gloaming has hexproof as long as it's untapped.
{x}{w}{u}{u}, {t}, Discard a card: You gain X life and draw X cards.
{4}{b}{r}, {t}, Discard a card: Put target creature card from a graveyard onto the battlefield under your control. It gains haste. Activate this ability only any time you could cast a sorcery.