As an additional cost to cast this spell, you may exile any number of black cards from your hand. This spell costs less to cast for each card exiled this way.
March of Wretched Sorrow deals X damage to target creature or planeswalker and you gain X life.
The mana value of March of Wretched Sorrow while it's on the stack is the value chosen for X plus 1, no matter how much mana you actually paid to cast it.
18-02-2022
wotc
You may exile more cards than necessary for March of Wretched Sorrow's first ability, but you can't reduce the mana it costs to less than {B} this way.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.