Wondering what the best monster is to train curse on? I would be guessing something with a high magic defence bonus so that the hit would keep splashing. Help? Currently have -55 magic bonus.
Zamorak monk in Varrock castle cage. There's usually someone cursing there, so you'll either have to find an empty world or steal it. When you use curses on the monk, even if you do hit it with curse you can immediately start again.