is worth it to invest in rejection 3 ruby's 15% armor ?
For PvE - no. You should not take hits. If you do, your tank is doing something very wrong.
is worth to invest in Gravikinesis 3 ruby's and 6 talents point in Mental Pulse ?
No, pulse r1 is enough for PvE. Gravikinesis is one of those rubies not worth even considering after 5.0 for any build.
They are relic of the past that has not been adapted to new stats introduced in 5.0
it is worth to invest in Egoism 3 ruby's you get 30%...in ecto and you get sec. increasing the time of etco to ?
No, that's pure PvP. Ecto Form (not the upgraded one) r2 is enough for PvE.
How about Triumph of reason it is increasing the pyro with how much ?
21%. You want that maxed for PvE.
How you increase the damage for w of blade ?
Triumph of Reason rubies are the only way. And always cast it on highest hp target, because if it's target dies the whole effect disappears.