To those familiar with the entire series

[Zippomcfry]

Hi,

How early/late will i be sorry that i built a character built solely on casting fire spells?

Thanks for your time

[fffreak9999]

To be honest, fire resistance increases slightly.
To the point of a few monsters being immune, but mostly you will be fine.

Don't worry too much about fire spells too much in Runelords.
The one off occasion where things are immune will be few and far between.

[Zippomcfry]

kewl thanks man, just the answer i was looking for