Thanks

The low magic stuff was one of those things that was meant to be a joke, but the players loved it and quickly become a way of defining non temple mages. I suspect the toad depends on the god... but I can picture an irate charlatan sicking one of those on a slumbering and actually decent priest/mage in a useless 'ahahhaaaaa!' sort of way.
I'd definitely be interested in a guide to magic for certain types of settings though - for years Runequest had always covered a few setting types well (low fantasy, moorcock and gloranthan) but it would be nice to see more like the eberron conversion, high magic, arthurian and so on. As a starter set a lot of D+D converts are going to want to go down a dungeon and hit things (and scream when they realize it's deadly

)
My only real addition to spells is a concentration on flavour. I dislike running a world where all magic is the same. It feels mathematical, like formula that's identical if it comes from a necromancer or a holy priest. Which seems wrong.
What I did with my present game is make a list of 12 or so common spells which all the churches knew. Stuff like healing, detection, warding, damage and the like then adapted them per church.
Using a Legend spell as an example:
Bladesharp (it makes your blade do more damage). I instantly chucked out fireblade, bludgeon and pierce. Basically ever weapon enhancement went into this one spell. Then filtered it by temple and aded flavour and additional effects as plausible. So:
Bladesharp for the temple of Ignecrex, lord of flame, war and final endings is
The Pattern of Combustible Wrath. The Caster's eyes begin to bleed (a totally unrelated effect linked to the nature of the god), and any bladed weapon held by them bursts into a deep crimson flame that spirals up and down the blade, flickering unusually slowly, doing random damage per magnitude (fire seems to equal randomness).
Bladesharp for the Temple of Rebellum, Lord of Battles, Storms and the First Snow is
The Bleak Covenant. The Air in the room chills noticeably as the spell takes hold to the point of breath suddenly becoming visible (flavour). Hoarfrost creeps down the caster's weapon causing frostbite and shattering the skin of anything it touches. (fixed damage per magnitude). The weapon becomes more vulnerable to breaking while under the effects of the spell, losing 2 hit points, but is capable of freezing small areas of liquid that it touches (minor effect/flavour that seems to suit the nature of the spell and be kind of cool - besides, the god prefers people using heavy armour so they should be blocking with a shield like real warriors....).
Lastly in the hands of a non martial deity:
Bladesharp for the temple of Libarca, goddess of magic, secrets and insanity is the
The Agency of Shallow Contagion. A giggle is heard in the air, and the folds of the caster's clothing suddenly seem angular and intertwined. Any weapon they hold turns black and begins to flicker and turn as transparent and insubstantial as the thick black smoke from an incense pyre (flavour - the angular folds are a reference to the goddess' symbol of a labyrinth). While the effect is active, the weapon effectively bends along the angles of reality, ignoring a point of armour for each level of magnitude. The spell is rumoured to be twisted by the priests of the goddess, and has a chance on a critical fumble or success to implant a temporary insanity in the caster or their target (I just stuck that in because I felt the nature of the goddess deserved it).
Now... in all three cases I'm not really sure one is exactly better than another one (the third is probably the weakest in many cases) but I know if there are three priests using their own variants in my party, them shouting 'FOR MY LORD REBELLUM I INVOKE THE BLEAK COVENANT!' while their friends invoke their own versions has to be a good thing. Looking at other gods I can imagine the nature of what stuff is on the blade or its appearance would vary from god to god. The death gods might have wraiths swirl around their blades while the weapons of nature or love gods might drip venom. Main thing is they made the character go 'oooh... I'm unique as is my cult!'.