I was wondering: is there a deliberate policy of not having melee attack spells? I don't think there are any, even in the promos. It could be quite an interesting approach to having a 'burning hands', 'rock fist' or whatever as a melee attack spell: the fact that it would be a type of attack would automatically stop it stacking with equipment, and the one-off nature fits quite well with some mage types.
You could have an enchantment 'rock fists' that gave access to a new sort of melee attack just like a weapon did. Or it could literally be an attack spell. If it was a quick spell, that might cause balance/rule issues: would you be able to use a melee bonus for it, and then for your real attack, for instance. But I don't see why a full action spell would be controversial: it would essentially be a 'range zero' attack with more interaction around guards etc.
The only problem I see with this would be that the costings would probably have to reflect the significant probability of other melee boosts stacking on the mage. But then, a melee-focused mage would presumably want a weapon, so there'd be inefficiency balancing it.