Your favorite black "life loss as a downside" cards?
I'm making a mono black cube, and I had the idea of having cards like [[Dark Confidant]], [[Phyrexian Rager]] and other cards that draws cards, kills permanents, disrupts the opponent's hand etc. so that aggro becomes more viable without having to push it too much. This is to also make lifelink creatures and cards like [[Tendrils of Agony]] higher picks.
Which would you say are the best cards that also has life loss, damage taking etc. as a downside? That are also appropriate for this cube, I will add, because [[Yawgmoth's Bargain]] for example is extremely hard for black decks to deal with and just not fun.