Recently in the RU-community there was a question about one build: https://www.grimtools.com/calc/lV70wwaZ (irrelevant to it effectivenes)
Confusing was that using build with Arcanist has about zero energy regeneration for calc, and the actually created one is negative at all.
Using reverse engineering and based on the in-game formula, I found out that the toggleable buffs that have active energy cost also scale with bonus regeneration from Spirit.
So, for a build above, investing attribute points into Spirit reduces the final energy regen in char tab 2
soultion is in lack of Energy regen per second (7,5 from augments vs. 16,6 active cost).
Some calculations to understand. (TL DR)
mana regen equation from database/records/game/playerresourcebehavior.dbr:
(((manaRegen*((intelligence/384)+1))+((intelligence-50)/100))+6.5) * elapsedTime
6,5 - base character regen
(intelligence-50)/100 - flat Bonus Energy Regen from Spirit
(intelligence/384)+1 - percent Bonus Energy Regen from Spirit
manaRegen - resulting energy regen per second from other sources
Sources of energy regen:
+X Energy Regenerated per Second - additive value from items, buffs and devotions
Increases Energy Regeneration by Y% - multiplicative bonus from from items, buffs (IEE in particular) and devotions.
+Z Active Energy Cost per Second - additive value from toggleable buffs
Notes, that Increase energy regen affect only energy regen per second
Other words, each 384 Spirit increase buffs active energy cost by 1 times
Returning to build above
And finally is it intended, that investing in spirit also iactive ncrease active energy cost?