Hutese, Diviner

During each players' upkeep, draw a card.
During each of your turns, discard a card.
You may cast instant spells from your graveyard
for {1} mana more for each time it has been
played.
{t}: Until end of turn, whenever you cast an
instant or sorcery spell, add {1}. Use this mana to
cast only spells with converted mana cost 3 or
less.