Scion said:
Personally, without some major abuse, I would have no problem with someone useing this feat to gain access to any spell from any list that meets the criteria and cast it as they would normally cast any other spell that they knew.
I'd let it work just like the psionic version and I doubt it would cause anything much for problems, if it did then I'd look it over, but likely not change the ability to gain any spell.
Can anyone come up with a few horrible abuses?
Well,to be honest, I'd allow a sorc or wizard to simply research a healing type spell if they really wanted it, I wouldn't make it a feat. For that matter, if we didn't have a clerical type in the group, I'd have the arcanist FIND healing arcane spells in spellbook treasure.
Of course, I'd have to have some good research and/or story reason to just switch over *heal*, and a feat might convince me that the higher powered spell is paid for... I'd much prefer spells along the lines of transfer wounds, lesser powered pure healing spells, and spells that convert 1 lethal HP into 2 nonlethal HP's of damage.
The one time we wanted an arcane healer I made up those latter two spells, both the 1/2 powered clerical version and the lethal to subdual. Both spells were less powerful, but together they equalled a cleric.... well, almost. And with a different enough flavor.
I know another campaign wherein the GM siply ruled that temp HP's first heal up any damage as a cure spell would, and then the rest are normal temp HP's. That wasn't really overpowered either.
So I personally don't see any problem power wise with that feat, other than it seems almost a waste of a feat if'n you're not a sorc.