Challenge Duels:
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Challenge duel will give the winner a fixed amount of NP and the loser will not lose anything. This is how you go about challenging someone.
[You must be registered and logged in to see this link.]^ post a new topic under that thread, stating who you are challenging much like this:
I challenge (enter name of person you wish to challenge) to a challenge duel.
If the person agrees then you duel. Post the results of that duel on the same topic and an admin will give out the necessary points to the winner.
Wage Duels:
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This is done very much the same way but on this thread:
[You must be registered and logged in to see this link.]The difference is that you can wager up to 500 NP, and this time the loser will lose that much and the winner gains that much.