Titus, Sanguine Thirsty

When Titus, Sanguine Thirsty enters the battlefield, discard a card, deal 3 damage to any target.
When Titus, Sanguine Thirsty deals damage to permanent(s), each player discards a card.
When an instant or sorcery enters a graveyard, creatures in your graveyard gain flash and can be played
until end of turn.