Okay, so I cheated on Autarch recently-- sorry, boys-- and bought Blood and Treasure on some trusted recommendations. Now there were bits of it I liked and bits of it I didn’t (Mainly, the 3.5-isms like huge spell and monster lists, and Bards, Rangers, and Assassins casting spells). One of the parts I really liked was its feats. Trim but robust, if I didn’t like the Proficiencies in ACKS it might be my go-to in the future.
My question is this: How viable would it be to turn a couple of the feats in it, which I thought were an interestingly simplified take on the idea, into special proficiencies for characters capable of casting spells in ACKS (and one as a general proficiency)?
For those of you that don’t have B&T, here are the feats I’m interested in porting over reproduced (Most of the book is Open Game Content, and even if it weren’t I think this qualifies as fair use):
Empower Spell: You can cast one spell per day with all of its variables
doubled (i.e. instead of 1d6 points of damage, it deals 2d6 points of
damage, or instead of the effect lasting 1d4 rounds, it lasts 2d4 rounds.
Enlarge Spell: You may double the range of one spell that you cast
each day.
Extend Spell: You can cast one spell per day with double the normal
duration.
Silent Spell: You can cast one spell per day without vocalizing it.
Still Spell: You can cast one spell per day without moving your hands.
Widen Spell: Once per day, you can double the area of effect of a spell.
This last one is the one I was thinking of as a general proficiency.
Magical Aptitude: You learn to cast a single 0‐level magic‐user spell
once per day. You may choose this feat more than once, applying it to a
different 0‐level spell each time. Any character can take this feat, even
magic‐users. (Note: I’d probably have to make this first-level spells, of course, since ACKS doesn’t normally use cantrips)
Would this mess up balance terribly, require too much translation, or even just be stupid?