This is probably the most comprehensive ninja guide to date by one of the best ninjas in the game. It explains the openers and AOE rotations but also shows the math and /why/ you want to dancing edge before dots, or why you want to prioritize shadow fang over mutilate. UBER is on point though and saying pretty much the same thing.

http://dtguilds.com/forum/m/6563292/...as-ninja-guide