I did all the basic ENM's, they're all pretty easy (much easier than the actual Promyvion fight). 2 NIN Tanks make everything really easy. The NM Boss has the same moves as the Promyvion boss. After you win, there will be a Sphere, when you talk to it, you get 3,000 EXP and 3 Clusters of Memory (Burning, Bitter, ect). The clusters are basically like Crystal clusters, but they contain 12 of a memory. It was fun, and I was able to level my RNG too! 3,000 EXP for an easy fight, while the prospect of getting okay money, is nice. One of the clusters sells for 100k on Phoenix server.
this is what is used to enter the E.N.M. battle field in promevion dem given by vanessa in ru'lude gardens no exp is lost for losing and have no clue as to items won other than good expill post again after i win