It isn’t the *size* of your mana pool that matters; it’s how you use it.

Quite possibly. It could all be completely normal, but I feel like the comic has hinted in enough places that it’s unusual to think there’s some background or plot to be uncovered in the future.

Oh, she definitely needs to level up more. But I could see the reason why she has little mana as bad stat investment. I wouldn’t be surprised if the size of one’s mana pool is affected by another stat, like constitution or endurance. She’s a genius for sure so I could see her having a big intellect stat by default and invested more heavily into it than she should have and didn’t invest into the mana pool stat.

I imagine high intellect just affects how easily you can pick up spells, how many spells you can learn, and the strength of the spells. I wouldn’t be surprised if Sev has a very high intellect by default as a genius and pumped up her intellect anymore. I imagine another stat like constitution affects things like one’s mana pool since using all of her mana caused Sev to get tired.

Going with this reasoning, this could be why Dana isn’t drained completely of her mana when she has her familiar out. She could’ve heavily invested in constitution or whatever stat spell casters use to affect the size of their mana pool.