Selfishness' Blindness

Your maximum hand size is 0. As long as Selfishness' Blindness is on the battlefield, your maximum hand size cannot change.
Spells you cast cost {w}{u}{b}{r}{g} less to cast. If
this effect would reduce a spell's cost to less than
one mana, it costs {1} instead.
Whenever you discard a card, lose life equal to its
mana cost.