Iron Chef Optimisation Challenge in the Playground LXXXV

[Heliomance]

So this is probably a stupid question:

The Astral Plane as described in the DMG has directional subjective gravity, not no gravity. Assuming it hasn't been updated or changed between there and Manual of the Planes, does that mean all references from the class take effect
1. Only on planes or regions with no gravity
2. Only on planes or regions with directional subjective gravity
3. On planes or regions with no gravity, and also the Astral Plane
4. On planes or regions with no gravity or with directional subjective gravity
Or some other thing I haven't thought of?

I'll be nice and give you interpretation 4.

...your responses are hilarious, guys. Love it. Also apparently I need to get better at eyeballing class value - I knew Astral Dancer was bad, I hadn't realised it was quite as utterly trash tier as you're all saying. Sorry!