...I'm of the opinion that you're trying to cram too much in a single tree here and losing on some awesome buffs we could've given them otherwise.
Remember, they are
our future branch of inquisition.
I'm of the opinion that we should give them everything we can, Braavos will need it in the days to come.
Can't we make, say, a tier-2 tree with (all/some) of those super nice and useful spells you guys suggested in previous tree you made up for them, those that will help greatly in their line of work, but also with with this in-field healing with leaves?
And another tree entirely for nondetection effect and whatever.
We probably should use the ritual to understand what of their cursed contraband we can sacrifice immediately.
@DragonParadox, will you allow for this to be done OOC?