Just a quick note to help those, who will be using Luna in dota 2, after being a fan, like myself - in dota 1.
1. Though Maim is no longer an orb effect, it will still not work with Moon Glaive - you can easily get an SNY or Sange, but you will not proc maim.
2. The bounces from Moon Glaive DO NOT lifesteal from HoD - just the first target that is hit.
3. Feedback and Skadi still does not work with Moon Glaive (but it won't stop you from attacking like in dota1)
4. chainlighting from maelstrom or mjo WILL WORK with Moon Glaive
I see that becoming a future core item along with the HoD (you lifesteal normally, unless you proc chain lightning, in which you chain instead of lifesteal)
Anything else I've missed out please mention below. I'll add to the guide.