Couple of Questions:

1) I've heard people talk about elemental mastery for invokers. Can someone please tell me which spells in the paths require 100% to gain mastery in that path? Is it just certain spells or all of them in a path? I've tried doing a search in game about elemental mastery and nothing comes up.

2) Do you get some rush of insight when you gain mastery in a path so its noticable?

Spells needed to be 100% for mastery of the element:

-Immolate for fire.
-Pillar for lightning.
-Improved invis for air.
-engulf or geysir or both.
-Quicksand for ooze.
-Rain of stone for earth?
-Conglaciation for ice.

There is no noticeable echo when you reach mastery beyond the normal mastering of a spell echo (you have perfected X), but some spell echoes change when you do (e.g. immolate, vitriolic stream and avalanche).

Help Fire Path, Air Path, etc. Those tell what spells you need to master.

When you get the requisite spell to 100% it tells you that you have a rush of insight into the next spell. So it is noticable.

I understand that part. What I don't understand is exactly which spells you need to perfect to get Elemental Mastery in that path. Supposedly from what I've heard having Mastery over an elemental path boosts the spells in that path a significant amount. I am just trying to figure out if I have to master every spell in that path or just certain spells in that path because you don't have to master every spell to get to the last spell in that path.

Thanks for the response.

Sorry for responding to the wrong question!