•How does Immanola know what Traditions The Spider has been Opened to? I suppose there are some records of his suspected and witnessed capabilities lying around.
Also, these are Ex-Miscellanea, they are mostly Hermetic Magi, not Hedge Magicians. Where is she going to find senior Hedge Magicians who would agree to this experiment, to baring all their secrets? This is not a cohesive House like Tremere!
Lots of Rego Mentem?
•Hermetic Magic is far superior in raw power to all of these. Why would they dilute the prophesied Child's powers with a host of abilities he/she could never develop fully? Each Season learning something else, even with an awesome SQ of 30+, is a Season not developing Hermetic Arts/Spells. Better to research Hermetic solutions to The Spider's powers. Who is going to teach? The mighty hedgies Opening may not be the best teachers, or even interested in doing so.
You would also need to waste seasons on teaching respective languages (Pictish) and Magic Theory (Folk Magic Theory) and Organization Lore (for all 3), as well, for each one, right? Some Gruagach powers need Initiations (Fetch, External Soul).
•Opening multiple Hedge Traditions is difficult, bordering on the impossible, as they tend to have low Lab Totals that are not easily increased, and very powerful hedgies are near their final Warping time. How is the third Opening even achievable, let alone keeping the other powers and not erasing them (even at skill 1). Even a titanically powerful Pralician with lots of aid and reaching an InVi Lab Total of 200 would not be enough to exceed x2 the totals required to simply Open, let alone preserve!
Let's see: Folk Witch Cursing 6, Healing 6, Flight 2, Shapeshifter 6, Animal Ken 2, Second Sight 2. So second Opening to Elementalist is 0 + already Opened 12 + 24 = 36!!! x2 = 72...
So Elementalist needs to hit in this scenario 73 Lab Total to Open and preserve.
Uhmm, a very powerful Elementalist: 9 Aura (best case) + 5 Int + 20 Technique + 25 lowest form + 4 Assistants with +7 each (very optimistic) = 87, done! Of course, this Elementalist is probably extremely deranged (with conflicting Personality traits of +8 or +9), and his own suite of Flaws. So good luck with that!
Third Opening for the Gruagachan is 72 + 2[2 Major Techniques 12, 4 Minor 8] = 112. Yikes!!!!
Super mighty Gruagachan with Lab totals: 9 Aura + Give 18+2 + Vision 30+2 + 18+2 appropriate focus + 5 Int + 7 specialized lab + 9+2 Pictish = 104. Gruagach seem gregarious, but not sure if they can receive lab aid. If they can, then reaching 113 is doable. Whew!
Pralician needs to hit: 1,650 to Open, 3,301 to Open and Preserve, is that right?
Folk Witch (3 Major + 4 minor= 130) + Elementalist (2 Major + 4 Minor = 100) + Gruagachan (2 Major + 4 Minor = 100)
Looks like I grossly underestimated the Hermetic Opening total.
"level required For Opening the Arts:.5 x (the sum of all Supernatural Ability scores)"
"minimum level per ability:.10 if the Ability derives from a Minor Virtue, or 30 if it derives from a Major Virtue"
Greater than or equal to twice level: Arts opened, some or all Supernatural Abilities converted into Hermetic Virtues
Best to invest in researching the Subtle Opening before!
•The Spider's powers are earned through several lifetimes, and through Story fiat, mainly. Difficult to compare or emulate mechanically!
•Latent Magical ability might be 1/Major Hedge Virtue, + 1 /3 minors. Too many for a 10 Virtue character!
•Opening the child to Folk Witch tradition first probably means Warping reaction will come from that, although Hermetic Opening might override this. Something to consider, as well.
Anyway, please let us know how you proceed!