Ok so another query about 'how you do it'. No preferences here, just sounding out some opinions an viewing other peoples saga.
So thre are several options here, the absolute worst one being the RAW default spontaneous one (more on this later).
Fast cast some kind of dispel magic formulaic spell you have mastered and roll dice to beat level etc.
Fast cast formulaic spell that creates a big sturdy wall/ring of fire/circle of mundane dommbringing or whatever else that prevents a mudane attack.
Now, then, the one listed in Core which does not require mastery is give yourself a -10 and 'create an effect' that would ward off the attack. This presumably incorporates meeting fire with water for magic, creating a illusory image of yourself to prevent intellego spells por watever.
These are not the problems - spells we can compare levels. It is mundane stuff that causes the problem There must be hundreds of legitimate ways to prevent a sword form hitting you including but not limited to turning the sword into an icecream, wrapping it in magical vines, making the wielders head catch fire, creating a small widden shield for momentary duration... the list goes on.
The problem is there is entirly nothing FAST about this process at the tabletop. Much discussion and head scratching. Yeha I can be mean as SG and whistle a countdown tune but it is a bit wierd to do it this way. Not to mention slow.
Is there anything in a supplement or house rule where the magus simply needs to defeat the attack total or something - something SIMPLE and quick. After all - next round the multicast ball of abyssal flame is gonna remove that particular aspect of the combat in all likelyhood.. or whatever. I was thinking somehting like - score of 10 required as long as TeFo could produce a relevant effect. So no InAq defence against an Axe... SG can still describe the effect just not spend ages pouring over tables that neither I, nor the players have 'mythic' comprehension scores in. Was there something like this in older editions?