Figured I'd drop this here as well (originally posted here)

Something a friend of mine and I were throwing around, trying to figure out if there's a way to make NIN work on some sort of rotation, and for the time being we came up with the rotation at the bottom. Neither of us are yet at 50 with NIN so we haven't had a chance to put it into practice, but I wanted to throw this out there and see if someone can take the idea and see if it makes sense.

NIN abilities just don't line up correctly. They have really odd durations and trying to make them match Ninjutsu was a struggle and not worth it. It was at this point that we were looking at cross-class abilities for NIN and besides the obvious 4 choices (Blood For Blood, Internal Release, Second Wind, Invigorate) every other option from MNK and DRG was just worthless. But we had a thought, regarding Impulse Drive. NIN feels like it needs something to pad out combos ever-so-slightly to get the debuffs, dots, buffs, and ninjutsu recasts to line up correctly, so we tried it, and it seems to work in theory. We had 3 assumptions going into this:

- Using Huton and waiting 20 seconds at the start is impractical, and not applicable to mid-fight
- With Huton on, we estimated with the GCD at 2 seconds. ID's can be taken out if the GCD is longer and the rotation too long
- Weave in Mug and Jugulate as needed or at will, there's plenty of time and they're not terribly important.

ID: Impulse Drive
IR: Internal Release
SF: Shadow Fang combo (2 actions), 40 Potency DOT for 18s
DE: Dancing Edge combo (3 actions), Decreases target's slashing resistance by 10% for 20s
AE: Aeolian Edge combo (3 actions)
Mut: Mutilate
B4B: Blood For Blood

Huton > Mut (2 sec) > DE Combo (6 sec) > Impulse Drive (2 sec) > Internal Release > Spinning Edge (2 sec) > B4B > Shadow Fang (2 sec) > Impulse Drive (2 sec) > Spinning Edge (2 sec) > Suiton > Gust Slash (2 sec) > Trick Attack > Aeolian Edge (2 sec) > Kassatsu > Mutilate > Raiton > DE (6 sec) > ID (2s) > SF (4 sec) > ID (2s) > Spinning Edge (2s) > Gust Slash (2s) > Doton > Aeolian Edge (2 sec) > Mut (2 sec) > DE (6 sec) > ID (2 sec) > SF (4 sec) > ID (2 sec) > AE (6 sec) > Huton (repeat)

~70s total