I even gave you a template with all bonus to calculate evocation DC.
The point is what would be other players DC with your build because often there isn't a bard and you want to CC/nuke mobs before they come in your debuff aura.
I would be also curious to know how exactly you calculate your buffed 116 charisma (lol, does it include abishai cookies too?).
The fact is that before reading a build, people usually want to know exactly these parameters and how exactly you calculate them: primary attribute, primary school DC, spellpower, spell critical chance, spell critical damage.
And only after knowing them, people bothering reading the other parts of a build (equipment, feats, enhancements, destinies).
You said that you would rather be a better healer than a nuker, but I don't see "Flame of the Favored" (healing wall) in tier 5 beacon of hope enhancement tree, I don't see empower healing feat, I don't see insightful/quality positive spell power, I don't see artifact positive spell critical chance/spell power.
All I see is a generalist build not specialized in anything (not even specialized in evocation DC because I don't see any evocation spell focus feats, no +2 exceptional DC, no +2 DC from fatesinger tree, no alchemical shield with +2 charisma).
I don't see enlarge spell feat, how do you heal people in raids (but also in quests) that are far from you? (that's the main reason for which it's almost impossible for me to resurrect players with scrolls in raids).
I'm not experienced in favored souls but I would say that the Legendary Flamecleansed Fury set is probably a must have for any favored soul caster:
+30 Artifact bonus to Fire, Force, Light and Positive Spell Power
+6% Artifact bonus to Fire, Force, Light and Positive Spell Crit Chance
+3 Artifact bonus to Wisdom and Charisma
+3 Artifact bonus to Spell DCs
Augment sets:
touch of power for +25 Artifact bonus to Universal Spell Power
set augment cruel cut for +15% Artifact bonus to damage vs the Helpless
Maybe fit Legendary sunken slippers boots in your equipment for universal insightful/quality spell power.
With this equipment you would be less thanky but you would be a better dps/healer caster.
Also constitution is not optimized because slavers item gives only +13 constitution instead of +14 from an augment, only +5 insightful constitution form augment, no exceptional constitution for globe of true imperial blood.