Grimoire of Hate

{t}: add {b}{b} to your mana pool, use this mana
only to cast creature spells. Lose 2 life. Activate
this only when you would cast a sorcery.
{3}{b}, {t}: target creature gains deathtouch until
end of turn. Gain 2 life.
{5}{b}, {t}: target creature gains infect until end
of turn, when it deals combat damage, it deals
double the damage until end of turn. Lose 4 life.