Bought:
1x Diamond Dust: -100 GP
1x Diamond: -300 GP
1x Silver Cage: -100 GP

Spent 1650 GP and 1 DT to copy the following spells: Tongues, Banishment, Polymorph, Telepathic Bond, Scrying, Disintegrate, Globe of Invulnerability

Indefinite Madness: You don't like how people always judge you.

1x Spell Scroll of 'Fireball' (found)
Gave the Cauldron of Plenty to the speaker Danneth Waylen, who offers each character a common magic item of their choice from Xanathar’s Guide to Everything - though he still needs 48 hours to acquire them. Magical armor obtained in this way is limited to leather, scale, or chainmail.

1x Potion of Invisibility (found)
Found Astrix' spellbook at her frozen corpse.
Spent 150 GP to copy spells: Shield, Comprehend Languages, Detect Magic

Found Avarice' Spellbook at her dead body along with her Staff of Frost.

1x Potion of Greater Healing (found)

1 Level for defeating Auriel.

Used Bag of Beans with 8 Beans: 86, 66, 32, 5, 41, 81, 68, 79
2x Egg Nests. Each with 4 Eggs. Made all 8 Con saves (Pala Aura +5 and Flash of Genius in Group)
CHA 8 -> CHA 12 , STR 8 -> STR 12

Spent 200 GP to copy spells: Fireball, Tensers Floating Disk
Gained Blessing of the Morning Lord: +10 temporary Hit Points at daily at dawn.

Found Nass Lantomir's spellbook at a frozen corpse.
Spent 150 GP and copied spells: Counterspell

Found Yilsebek's Spellbook at the dead drow body.
1x Potion of Surperior Healing (found)

Found the Incantations of Iriolarthas at the body of the demilich.

Two Levels because :
1 Level for entering Iriolarthas Lair, and
1 Level for Defeating Iriolarthas himself.
This is the Spoiler free Explanation, for further Information ask the Player.

Found Dzaan's spellbook in the ruins of Easthaven.
Spent 300 GP and copied spells: Disguise Self, Knock, Slow

Got cursed for opening the grave. Removed curse by drinking blessed water from Statue of Silvanus (Greater Restoration).
Bought:
Familiar Ingredients: -10 GP

Drank random potion and learnt Minor Illusion cantrip.

• STR +2 -> INT +2
• Light Armor -> Brewers Supplies
• Medium Armor -> Alchemist's Supplies
• Battle Axe -> Cartographer's Tools
• Handaxe -> Land vehicles
• Light Hammer -> Navigator's Tools
• Warhammer -> Water vehicles

Bought:
Snowshoes: -2 GP
Crampons: -2 GP
Shield: -10 GP

Bought:
1x Diamond Dust: -100 GP
1x Diamond: -300 GP
1x Silver Cage: -100 GP

Spent 1650 GP and 1 DT to copy the following spells: Tongues, Banishment, Polymorph, Telepathic Bond, Scrying, Disintegrate, Globe of Invulnerability

Indefinite Madness: You don't like how people always judge you.

1x Spell Scroll of 'Fireball' (found)
Gave the Cauldron of Plenty to the speaker Danneth Waylen, who offers each character a common magic item of their choice from Xanathar’s Guide to Everything - though he still needs 48 hours to acquire them. Magical armor obtained in this way is limited to leather, scale, or chainmail.

1x Potion of Invisibility (found)
Found Astrix' spellbook at her frozen corpse.
Spent 150 GP to copy spells: Shield, Comprehend Languages, Detect Magic

Found Avarice' Spellbook at her dead body along with her Staff of Frost.

1x Potion of Greater Healing (found)

1 Level for defeating Auriel.

Used Bag of Beans with 8 Beans: 86, 66, 32, 5, 41, 81, 68, 79
2x Egg Nests. Each with 4 Eggs. Made all 8 Con saves (Pala Aura +5 and Flash of Genius in Group)
CHA 8 -> CHA 12 , STR 8 -> STR 12

Spent 200 GP to copy spells: Fireball, Tensers Floating Disk
Gained Blessing of the Morning Lord: +10 temporary Hit Points at daily at dawn.

Found Nass Lantomir's spellbook at a frozen corpse.
Spent 150 GP and copied spells: Counterspell

Found Yilsebek's Spellbook at the dead drow body.
1x Potion of Surperior Healing (found)

Found the Incantations of Iriolarthas at the body of the demilich.

Two Levels because :
1 Level for entering Iriolarthas Lair, and
1 Level for Defeating Iriolarthas himself.
This is the Spoiler free Explanation, for further Information ask the Player.

Found Dzaan's spellbook in the ruins of Easthaven.
Spent 300 GP and copied spells: Disguise Self, Knock, Slow

Got cursed for opening the grave. Removed curse by drinking blessed water from Statue of Silvanus (Greater Restoration).
Bought:
Familiar Ingredients: -10 GP

Drank random potion and learnt Minor Illusion cantrip.

• STR +2 -> INT +2
• Light Armor -> Brewers Supplies
• Medium Armor -> Alchemist's Supplies
• Battle Axe -> Cartographer's Tools
• Handaxe -> Land vehicles
• Light Hammer -> Navigator's Tools
• Warhammer -> Water vehicles

Bought:
Snowshoes: -2 GP
Crampons: -2 GP
Shield: -10 GP