There are two types of curses: range curses and specific curses.
A range curse affected the target's fortune, ranging from minor inconveniences and obstacles in their actions to catastrophic disasters like lightning strikes.
This kind of curse is not easy to perform and carries a significant backlash.
The success rate of such curses was very high.
People curse others at the cost of their own lives and luck.
However, few living people engage in such curses as they lack sufficient luck, and the backlash may be greater than the curse itself.
The art of cursing is powerful but difficult to cast.
On the other hand, specific curses target body parts or specific events. They have a lesser backlash, a lower cost, and a higher success rate.
Cursing was a practice distinct from ordinary spellcasting. It's difficult to eradicate and has an unusually long-lasting effect.