Part 2 Comments to the changed Spells / Spheres second Tier 3 Spell sugguestions added as far as i can imagine (continued from suggestion to the system in General):
Air
Fair Winds
making it Permanent will perhaps do and reduce Micro
Maelstrom
neat, Stack busting moved from Fire to Air

(perhaps to strong? We will see)
Conjure Air Elemental
2. Spell Tier 3?
Body
Haste
Make it permanently grant Mobility 1 Expand to all units, not just living (to save 1 Promotion, reduce micro, remove several exploits. Help ai since it uses Mobility from Promotions rather rarely)
Regeneration
Making it Permanent will do and reduce micro geatly. Still ok for Tier 2 i think.
Graft Flesh
Still needed as a Spell? (Old Flesh Golems where really nice

but not so much AI-Friendly, new ones not so much and Mokkas delivers em en masse and better ones too if i remember correctly)
2. Spell?
Chaos
Dance of Blades
Just make it Permanent, reduces Micro and is AI-Friendly. 1 First Strike is not that extremely strong.
Mutation
Rather leave it to the cultists.
To strong as an easy to get one (one of the best Tier-2 in the System, exept for precious / expensive units but those are not that common at the Time of Tier 2 anyways) and reduces the speciality of OO and Cultists (I often go OO temporary just for Mutation) and whould even become better
Perhaps leave Chaos Marauders?

Imo one of the best / most interesting Tier 2 Summons.
Adepts and other Parts of my Army in mortal Training for their EP instead of just sitting around

.
As of now, i will dearly miss them.
Summon Pit Beast (replaces rage)
RIP old Rage effect the new one just never has lived up to you.
allright and very nice.
2. Spell Tier 3? (Perhaps the old Rage back. Together with the old Avatar effect.

I do like the old effect far more.)
Creation
Death
Raise Skeleton
Summon Spectre (replaces contagion)
Summon Wraith (replaces lichdom)
Very nice. Especially with Sphere change for Sheiam.
2. Spell Tier 3
Lichdom
Dimensional
Escape
Earth
Wall of Stone
Perhaps allright with the new city Defense System if it really works as +25% now.
Stoneskin
Very nice Change / Place. Just right
Conjure Earth Elemental (replaces crush)
Elemental Sphere = Summoning Tier 3 = allright
2. Spell?
Enchantment
Enchanted Blade
allright and Ai Friendly.
Flaming Arrows
Just Replace this one with Magic Weapons (Weapons +1

) 1 Bonus Magic (? Force or whatever seems fitting) damage Strength usable for all units. For reasoning see spiritual hammer.
Very Nice, unspecific and Ai- / New Player-Friendly. Whould be just right for Tier 2 i think.
Spellstaff
(Allright but perhaps reserve as special for Amurites UU only and replace with something else. so many options what to enchant... Im sure you will come up with something)
2. Spell?
Entropy
Wither
allright
Rust
never used this one, perhaps beef up a bit?
Enervation (now it also causes some death damage)
Sounds neat
Fire
Blaze
Fireball
Conjure Fire Elemental (replaces meteor swarm)
Allright. It has been long time for meteor swarms demise. Just made everything else including summons look bad.
2. Tier 3 Spell?
Force
Whirlwind (push)
Ice
Law
Loyalty
Valor
Summon Hosts of the Einherjar (replaces unyielding order)
Allright but Leave Unyielding Order as second Tier 3 spell It is such a Good and Usefull spell. Just restricting it to order is really sad and imo unnessesary. Whould take away some late game fun.
Life
Sanctify (needs a broader use, maybe this and defile grants bonuses in the tile to angels/demons?)
Sounds allright.
Destroy Undead
Should work vs. Demons as well if it doesnt anyways. Needs to become better. (Perhaps even Merge with Sanctify)
Ressurection (very specific, needs a more general use)
Just make it not use the Node (perhaps Casters Life instead?) and work with all heroes (Would be very powerful but why not? Less reason to reload for those of us who do and whould help AI for sure if it could pull that one of.) perhaps all heroes leave a Graveyard to make it possible instead of some obscure Tag for the Civs Heroes only.
Metamagic
Floating Eye
sounds allright
Dispel Magic
needs some Beefing up perhaps.
Mind
Charm Person
Needs to be toned down a bit perhaps. AI could use it quite well 1 think.
Inspiration
Domination
allright
2. Tier 3 Spell?
Nature
Treetop Defense
hope the new Change helps to make it worthwhile.
Poisoned Blade
Magic Weapon +1 in Enchantment whould replace this one. Im sure you will come up with something interesting. Perhaps reintroduce summon Tiger. The AI really used it after all.
Vitalize
glad that it will stay.
2. Tier 3 Spell?
Shadow
Blur
allright. Perhaps make it permanent if not allready.
Shadowwalk (replaces hide)
Perhaps replace completely if new defense System wont make it usefull.
Summon Mistform (replaces shadowwalk)
allright
2. Tier 3 Spell?
Spirit
Courage
Hope
Trust (probably needs to be more powerful)
Allright. All this sphere needs is another Tier 3 Spell.
Sun
Scorch
Blinding Light
Summon Aurealis (replaces revelation)
Sounds allright
2. Tier 3 Spell?
Water
Spring
Water Walking
Conjure Water Elemental (replaces tsunami)
Sounds allright.
2. Tier 3 Spell
Tsunami (Mutation as Tier 2 OO Priests instead)
Along with that change all of the priests would switch to a new model where they all get the following spell:
Divine spells for all priests:
Cure Disease
very nice (one Reason to leave Mutation only to OO)
And all high priests get the following spells:
Divine spells for all high priests:
Heal
Very nice and new-Player-Friendly.
And each priest/high priest get the following unique spell based on their religion (the first spell is the priest spell, the 2nd is the high priest spell):
Order (start with spirit guide promotion Whouldnt Empyrean also or morely Qualify for this lorewise? I remember a discussion about Spirit Sphere at Order Priests somewher)
Bless (weaker version)
Sounds allright
Unyielding Order
Perhaps allow this to Order-Archmages as well and and add another Spell here.
Empyrean
Revelation
Crown of Brillance
(Cant comment, havent played enough. Perhaps add another Spell here with 1 Overlap to one Archmage Sphere most likely Sun)
Runes
Shield of Faith
Sounds allright
Earthquake
Never used this one much.
Perhaps another Spell here as well and 1 overlap
Fellowship
Bloom
allright as ever.
Summon Treant
Dont like the Idea of Priests as Summoners (exept Kraken). Eats into the Magicans Domain. Perhaps should be Archmage/Summoner instead and Vitalize as Overlap with a new one for second FoL Tier 3.
Esus
Overlords
Tsunami
Perhaps put Mutation back and this one as additional Water 3 Tier 3 spell to both Priests and Mages. (Tsunami) (Cultists should start with Water Walking anyways)
Summon Kraken
Sounds allright, Add Tsunami as overlap.
Veil (start with unholy taint promotion)
Ring of Flames
Summon Balor
At Veil summoning sounds ok (Perhaps at Wraiths or Fire Elementals as second / Overlap)
Here are all the spells that would be removed by this plan:
Burning Blood (maintained for the Moroi)
Could also be for summoned Chaos marauders.
Spell itself wont be missed.
Graft Flesh (would probably remain as a special purpose spell)
Thought you whould kick it out?

Whouldnt be sad about the new Graft Flesh going.
Hasturs Razor (becoming a unique spell for Hemah)
Just right.
Rage (maintained for the avatar of wrath)
Bring back old effect for both Tier 3 Chaos and Avatar
Contagion (becoming a unique spell for Mary)
Just right
Lichdom (becoming a special 2nd spell that is available with death3)
Keep as 2. Tier 3 Death
Transmutation
perhaps as a Special somewhere?
Summon Kikijub
wont be missed
Crush (becoming a special dwarven druid spell)
Just right
Spiritual Hammer
Whould be the single most painful cut in the cut-list. Divine Units in this Mod are more abundant than Recon and Archers combined.
But general +1 Strength for all at Enchantment 2 whould be very neat and remove alot of spells and confusion with the same effect so i whould be more than happy with that.
Unholy Taint
Just right
Summon Imp
won't really be missed.
Banish
won't be missed
Summon Azer
Good thing. Never had a use.
Pillar of Fire (becoming a special spell for Chalid)
sounds allright
Meteor Swarm
At long last. Best Change in the mix imo. Dearly needed.
Restore City
won't be missed
Summon Law Bringer
was ok but not really sad about it.
Righteous Cause
Was fun if it worked but to specific and whould have been a headace getting the AI to grasp it
Summon Griffon
RIP Soul Forge Exploit.

Not so bad. Just right as as real Unit gained by Event.
Summon Lifespark
Heal should really be priests domain
Hideous Thoughts
Wont be missed much
Summon Guardian Vines
Entangle (becomes a special druid only spell)
just right. But needs to be beefed up seriously.
Hide (becomes a special Esus spell)
Superb Change to make Esus more interesting.
Summon Phantasm
wont be missed.
Whitefire
havent used Empyrean often. So no miss here
Summon Sand Lion
Just right as Malakim special.
Summon Djinn
won't miss
Spirit Guide
just right moving it to Priests
Summon Chaos Marauder
Will be missed Dearly. Mutation rather as Cultist spell and this one to keep for Chaos 2.