so with highest 6th level and int 18 I understand it goes as:
1st-3rd lvl 18 spells each
4th 13 spells + 2
5th 9 spells + 1
6th 4 spells + 1 need to roll above 85%
1st:
Alarm, Burning Hands (VS), Charm Person (VS), Color Spray (VSM), Enlarge* (VSM), Magic Missile (VS), Sleep (VSM), Wall of fog, Detect Magic (VS), Mount (VSM), Read Magic (VSM), Gaze Reflection (VS), Disarm (VS) (Vol I), Phantom Armor (VSM) (Vol III), Detect Secret Passages and Portals (VS) (CBOS), Detect undead, Shield, Grease.
2nd: Gemidan's Paralytic missile (VS) (Vol II), Lightning strike (VSM) (Vol II), Zala’s Lifeforce Guardian (VS) (Vol IV), Stairway (VSM) (Vol IV), Fire Arrows (VSM) (Vol II), Cat’s Grace (VSM) (PurpleWorm), Mirror Image (VS), Flaming Sphere (VSM), Melf's Acid Arrow (VSM), Summon Swarm (VSM), Continual light, Hypnotic pattern, Knock, Strength, Invisibility, blur, ESP. pyrotechnics
3rd: Flame Arrow (VSM), Haste (VSM), Slow (VSM), Blink (VS), Gamalon's Fiery backlash (VS) (Vol II), Tenser’s Deadly Strike (VSM) (Vol IV), Drawmij's marvelous shield (VS) (Vol I), Alacrity (VSM) (ToM), Alternate Reality (VSM) (ToM), Steam Blast (VSM) (Vol IV), Shadow Blink (VS) (Vol III), Teleport Object (VS) (Vol IV), Dispel magic, Fireball, Hold Person, Hold undead, Invisibility 10' radius, Protection from evil 10' radius
4th: Improved Invisibility (VS), Emotion (VS), Fire shield (VSM), Phantasmal Killer (VS), Polymorph other (VSM), Ploymorph self (V), Shadow Monsters (VS), Stoneskin (VSM), Improved Strength (VSM) (CBOS), Slowspell, 10’ Radius (VSM) (FR, Vol III), Mordenkainen's Celerity (VSM) (CBOS), Vitriolic Sphere (VSM) (CBOS), Minor Globe of Invulnerability, Dimension door, <DM 01>, <DM 02>
5th: Demi-Shadow monsters (VS), Summon Shadow (VSM), Improved Blink (VS) (CBOS), Teleport (V), Chromatic Blade (VSM) (Vol I), Cloud kill, Telekinesis, Hold monster, Dismissal, <DM 01>
6th: Chain Lightning (VSM), Death Fog (VSM), Disintegrate (VSM), Shades (VS), <DM 01>
[1d100] = 4[1d100] = 21[1d100] = 1[1d100] = 96
So shades failed. Do I choose a different spell or lose it?
Semi-permenancy is 6th or 7th level?
Thanks.