I don't have all packs but your set up is really close to my game set up maybe mine is slightly inflated. I do still play with Season but am a bit annoyed without of season crops when off the home lot trying to get new specimens (but technically it is suppose to contribute to the challenge). But basically my set up is EbN, L&D, RoM, V, W, P, CC for fantasy, CoL, S, SE, GtW, GT, LS, IL, HR, JA, OR, DO, HCH, CK, RG, VG for extra gameplay and substance. What I could cut, basically I did just buy a bunch of packs during the summer sale are IL, DO, CK, RG, VG. If I was asked to curb further with bare minimum packs, I'd choose to keep these packs EbN, L&D, RoM, CC, CoL, HR.
- EbN Natural Living Skill, Apothecary Skill and Naturopath Career.
- L&D (wishing they fix/allow Macabre/Mystical to be compatible I'd be in heaven) but basically I love my Mystical Sim doing tarot and a bunch of the CAS.
- RoM Practical Magic Spellcaster (even if it is just 1 Sim with it) I love exploring collecting and not being a slave to needs. That and CAS/Build/Buy.
- CC I love this with my Spellcaster/Collector she wears Moonstone (spellcaster support), Jade (chance of crystals to drop randomly), Hematite (pretend they are immortal) and Fire Opal (for my Jealous Romantic, keeping him Flirty helps keep the peace and romantic satisfaction up if/when I am using LS). I also love the Crystal Tree, and how the Jewelry looks!
- CoL I like the challenge of Simple Living (I usually love pairing this with Home Chef Hustle adding a prepping step, but I do have a no spoiling mod too).
- HR for the farmhand and coloured Mini Sheep just love these pets and they are low maintenance with a farmhand.
I'd have to disagree about spellcaster with EbN, they are (I guess) an alternate fairy choice.
- Spellcasters that specialize in Practical Magic + Natural Living Skill = Synergy. Scruberoo and Repairo are huge saves for EbN. While leveling the Natural Living Skill, Sims can instant get fully clean anywhere. And if bad luck or Burning Passion cause fires/burnt objects Repairo fixes instantly (on and off the home lot). Even while you are waiting for a higher Natural Living Skill Delicioso can help with eating instantly too without tummy issues. What Spellcasters lacked in self sustainability they get with Natural Living Skill is a means to sleep, bladder, fun and socialize anywhere (unless you basically cheat with a Plentiful Needs potion).
- Practical Magic Spellcasters + Apothecary Skill (despite new apothecary ingredients cannot be copypasto'ed (hope they fix/change this), the rest can be). Herbio, Floralorial and Transportalate helps a gardening and collector Sim breeze with multitasking while in the Naturopath career and leveling Apothecary Skill. I never enjoyed the game more since the EbN/RoM combo.
- Also the Realm of Magic is unaffected by Seasons weather wise, so helpful place to level Natural Living Skill.
- Fairy Dust can be Copypasto'ed, super helpful!
Beyond that I am planning on getting H&B, I want to sell my potions/cures/elixirs on my home lot paired with the Naturopath career eventually.