I don't know about that, I imagine the Fire Shield is actually being maintained through the battle by magical power from the casting mage, so its only as strong as the fire-magic-power the mage can supply it with.
I guess...
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I'm in the IDF. (So any new reply by me is a very rare event.)
Hrm I didn't know AS/Fireshield scaled with magic paths. What is effected by increased magic power? Chance of catching fire, and/or damage?
And speaking of communicants...are there any spells that rely on base magic power? Someone said that Magic duel uses pre-buffed/booster for both sides. Is there any others?
I just assumed because of the charcol shield it was fixed. Normally you can tell because of the + in the spell dscription if the spell can be powered up. Fire shield has no such marker in the description, as I doubt any of the damage via buff spells do.
Do all improve will higher spell paths? Does a 9w mage get more bang out of Breath of winter for instance?