Bukkit

# fill in your world name here
name: worldNameGoesHere
# this is the amount of effects you want to use.
numberOfEffects: 2
# configure every effect like this:
effect1:
   id: 1
   level: 2
effect2:
   id: 5
   level: 1
# you can add more effects by increasing the numberOfEffects and adding 'effect3' ...