I was initially going off of this link from the Nexus page of this mod: https://www.dropbox.com/s/sbj0trjhu2cu1rz/Encounters%20skills_full%20version.pdf?dl=0

Only it's not accurate. Some skills like Battering Ram are listed as Adept, others just like Precise Incision list requirements that don't exist, or skills like Despair don't even list their hybrid skill requirements (Hydro in that case).

I made my own personal list of the Cyseal vendor skills available for purchase. They're listed with the recommended skill level, not the minimum requirement. To reflect what your minimum ranks should be to use these spells without penalty. And then I sorted them according to skill and attribute requirements.

Hopefully someone else finds it useful. I figured I'd share since I keep trying to theory craft builds only to go in game and find out that I needed different requirements.

Aerotheurge (Rank / Name / Skill / Attribute / Special)
N - Winds of Change -/-
N - Shocking Touch -/8
N - Avatar of Storms 2/9
N - Bitter Cold 2/9
N - Teleportation 2/9
N - Air Absorption 2/9 (lvl 6)
N - Lightning Bolt 3/9
N - Thunder Jump 3/10
N - Wildrun 3/10 (Ranger 2)
A - Invisibility -/10
A - Headvice 3/10 (lvl 6)


Hydrosophist (Rank / Name / Skill / Attribute / Special)
N - Freezing Touch 1/8
N - Rain 1/8
N - Avatar of Frost 1/9
N - Regeneration 2/9
N - Slow 2/9
N - Soothe 2/9
N - Water Absorption 2/9 (lvl 6)
N - Deluge 3/10
N - Rime 3/10
A - Summon Ice Elemental 3/- (lvl 6)
A - Ice Shards 3/10 (lvl 6)
A - Ice Wall 3/10 (lvl 6)
A - Cold Snap 4/11 (lvl 6)


Geomancer (Rank / Name / Skill / Attribute / Special)
N - Summon Spider 2/-
N - Avatar of Poison 1/8
N - Bless 1/8
N - Creeping Ooze 1/8
N - Fortify 2/9
N - Boulder Bash 2/9
N - Earth Absorption 2/9 (lvl 6)
N - Nature’s Fury 2/9 (Ranger 1)
N - Fallow 3/10 (Ranger 2)
A - Thorn Cascade 3/10 (lvl 5)
A - Petrifying Touch 4/12 (lvl 6)


Pyrokinetic (Rank / Name / Skill / Attribute / Special)
N - Burning Touch 1/8
N - Elemental Visions 1/8
N - Avatar of Fire 2/9
N - Flare 2/9
N - Heat Metal 2/9
N - Self-Immolation 2/9
N - Fire Absorption Shield 2/9 (lvl 6)
N - Boil 3/10 (Hydro 1)
A - Sphere of Negation -/10 (lvl 6)
A - Summon Fire Elemental 3/- (lvl 6)
A - Purifying Fire 3/10 (lvl 6)
A - Explode 4/11 (lvl 6)
A - Wildfire 4/11 (lvl 6)
A - Fireball 5/13 (lvl 6)


Soldier (Rank / Name / Skill / Attribute / Special)
N - Defensive Stance 1/- (melee weapon)
N - Precision Stance 1/- (melee weapon)
N - Divine Light 1/8
N - Battering Ram 1/8 (melee weapon)
N - Helping Hand 2/-
N - Bolster 2/8 (melee weapon)
N - Command 2/9
N - Encourage 2/9
N - Crushing Fist 3/10
N - Cure Wounds 3/10
A - Whirlwind -/- (melee weapon) (lvl 3)
A - Spiked Shell 1/- (melee weapon) (lvl 4)
A - Crippling Blow 3/10 (melee weapon) (lvl 6)
A - Rage 4/11 (melee weapon) (lvl 6)
A - Eroding Strike 5/13 (melee weapon) (lvl 6)


Ranger (Rank / Name / Skill / Attribute / Special)
N - Ranged Power Stance 1/- (ranged weapon)
N - Ranged Precision Stance 1/- (ranged weapon)
N - Ricochet 1/- (ranged weapon)
N - First Aid 1/8
N - Splintered Arrow 2/- (ranged weapon)
N - Anticipate 2/8 (melee weapon)
N - Doctor 2/9
N - Treat Poisoning 2/9
N - Freezing Trap 3/10 (Hydro 1)
A - Conjure Acid Arrow -/9 (ranged weapon) (lvl 6)
A - Farseer 2/10 (lvl 6)
A - Survivor’s Karma 3/10 (lvl 3)
A - Absorb Elements 3/10 (lvl 6)
A - Infect 4/11 (lvl 6)
A - Vampiric Arrow 4/11 (ranged weapon) (lvl 6)


Scoundrel (Rank / Name / Skill / Attribute / Special)
N - Precise Incision 1/- (dagger)
N - Adrenaline 1/8
N - Trip 1/8
N - Venomous Strike 1/9 (dagger)
N - Lacerate 1/8 (dagger)
N - Misty Step 2/- (Aero 2) (lvl 5)
N - Fast Track 2/9
N - Winged Feet 2/9
N - Walk in Shadows 3/10
A - Eye Gouge -/9 (dagger) (lvl 6)
A - Squander 3/9 (Pyro 2) (lvl 5)
A - Blur 3/10 (lvl 4)
A - Fade 3/10 (lvl 6)
A - Cloak and Dagger 4/- (lvl 6)


Witchcraft (Rank / Name / Skill / Attribute / Special)
N - Vampiric Touch 1/8
N - Curse of Cuts 2/9
N - Decaying Touch 2/9
N - Lower Resistances 2/9
N - Malediction 2/9
N - Mute 2/9
N - Resurrect 2/9
N - Summon Undead Warrior 2/9
A - Oath of Desecration 3/10 (lvl 4)
A - Rapture 3/10 (lvl 6)
A - Despair 3/10 (Hydro 2) (lvl 6)
A - Banishment 4/11 (lvl 6)
A - Attenuate 4/11 (Hydro 2) (lvl 6)
A - Drain Willpower 4/12 (lvl 6)

NOTE: The tooltips are not 100% accurate in game from the vendors. For example the Fortify and Summon Spider spells do not indicate that you need Geo 2 to avoid the extra AP cost. If I find other issues I'll update this to reflect what your minimum ranks should be to use these spells without penalty.

I've been rerolling a lot and starting over as my builds have been not set up to expand into ideal paths for Tactician difficulty. Or I've just made something that proved to not work. /shrug

I may come back and update this list with the later vendors pending how far I progress.