I read somewhere haste does not reduce GCD of your core abilities. with high haste, you shouldnt be energy starved any more. Is that true? are you energy starved during bloodlust/heroism?
No, usually you would also be using CDs during lust so you should have / pool the resources required for that window anyway.
haste for windwalker is very weak unless its A LOT of haste. its why we use our current BIS legendary. comparatively to what benefits the other stats bring to windwalker its the weakest.
Agil>Vers>crit=mastery>>haste.
if you are having energy problems as a windwalker, you are playing the spec incorrectly.
This is correct. Energy classes do not benefit from haste reduction on the GCD.
Haste does increase Energy regeneration so yes that technically is the case. It also increases things like DoT ticks and auto attack speed which affect procs like Subs passive combo point generation, Outlaws combat potency energy regen, and Assassinations energy regen through poison damage on bleeding targets (can’t remember what it’s called).
Typically though haste is less valued stat over things like mastery or vers etc depending on spec. They already have high attack speed with things like Slice and Dice and as mentioned don’t get the GCD reduction, so overall the significance of the impact is quite reduced.