NSD = No Skill Delay
This will just give you an higher dmg output without DC, it will not let you spam as many skills as you want.
You need an autoclicker for this that I will not provide, and I ask other people to not post one either, people have to learn to use the search function of Google..
1. Link autoclicker to hotkey for normal attack (or any attack that can't be used while in bm2)
2. Put the autoclicker on 1,5 hits / second (1 hit every 333ms)
3. Get No Skill Delay address (for EU/DE/IT/FR/ES, you can download and get the no skill delay address there)
You can now go in BM2 and let the autoclicker do its magic, on warrior you will see that he will do 3 hits, then start his 1st hit again immediatly after the 3rd one. (same goes for FB)
On blader, if you combine this with auto retarget you will see a serious amount of damage increase without DC.
This works for FA and FS as well.