Maszera, Knowledge Devourer

Whenever you discard a red card, Maszera deals
2 damage to any target.
Whenever you discard a blue card, draw a card.
Black noncreature cards you own have madness.
The madness cost is equal to its mana cost.
Discard two cards: Return target card from your
graveyard to your hand. Activate this ability only
as a sorcery.