Samloyal23
Adventurer
It does depend a bit on how pervasive magic is in your world. In my world, magic is very rare and mostly a heavily guarded secret. It is not an "everyday" thing. However, I still find the idea interesting and worth exploring.
Just remember that not everyone who uses it is an adventurer. It will end up being used for things that are not combat or survival related. Clerical domains are not based on the %0.0001 of worshipers that become heroes or villains. They are based on the beliefs of common worshipers. While the spells may be useful on an adventure or quest, the domains are based on the hopes and desires of the masses.