I haven't tried anything as per the OP, but the spells selection for the Wardens one of the things I'd like to see further expanded.
I appreciate the author has sought to make a clear distinction, if only in flavour, from FG with those currently available, and that the heritor / warden dynamic is supposed to be different to FG gameplay, but I guess I miss some more generic dnd-y type spells, and am not entirely sold on the melee / bloodburn bias in GA.
But this just reflects my own gaming background / experience - and isn't a crticism of the rules as such. I very much respect the author's integrity in giving GA a markedly different flavour to FG.