First off, that's mostly brilliant.
Second: add something about paying XP cost, and prohibit some spells --
wish should be legal,
miracle should not. Also
planar binding should be legal, but not
planar ally. I note you write about the Sorcerer spell list, but also have
mass heal as your example spell, so I'm a bit confused.
Third: some spells are just too weak.
Restoration might be worth a feat, but
cure light wounds just isn't. So some mechanism for upgrading would be nice. Like, you get the lesser, regular, and greater version of a spell when you qualify for them. That would cover the
planar binding and
restoration lines.
Fourth: I kinda like the secondary benefits, both to the original [Reserve] feats and to my [Unlock] feats. How would you model this with the generic feat?
- - -
However, the healing thing that I wrote is just plain wrong. Emulating a single spell is bad in this case; the scaling is terrible.
Resilient Gift [Unlock]
Prereq: Eldritch Blast +2d6
Benefit: You can cure damage or ability damage as a spell-like ability; using either costs you -1d6 Eldritch Blast damage until you rest. Additionally, any spell-trigger or spell-completion item that you use with the Conjuration (Healing) sub-school functions at +2 caster level.
You can heal hit point damage or ability damage according to your caster level (in the class that grants you Eldritch Blast) as follows. You can cure 4 hp / level, or you can cure ability damage equal to 1 / 3 levels. Alternately, you can remove a single condition or effect that imposes a penalty on ability scores (such as Fatigue or a
ray of enfeeblement).
Cheers, -- N