A powerful spell that curses an damns your enemy for an extended period of time. 2 mud years. Not cumulative. Takes all mana, minimum 500 mana to cast. Minimum level to cast it 70. The caster dies when casting this so they lose 2.3 million exp. The damned player will be cursed with bad luck for the duration of the spell. Minimum 1 mud year, max 3, depends on power of caster.
What would do that damnation
-30% regen
hitroll -3
damroll -3
sucess on flee -30%
armor +30
losing concentration 1/4 chance

just throwing ideas, dunno what you all think

Interesting Idea

Do you realize that one mud year takes about 10 days? Up to three mud years and you are looking at a month. Sorry, I don't agree with this one. I could see a curse that would last like 5 real-time minutes.

yeah, i agree. effect time is way way way too long.