Rahelle the Scorpion, is an empire champion. she's recruited at lv1 but comes with a couple of abilities, including death magic. also a poisoned dagger.

She's a girl rescued by a swarm of scorpions and raised by a hermit.

The following is an excerpt from her bio:

"But the Destiny answered my prayers, and sent to me a thousand scorpions who bore me upon their backs to the safety of a hermit's cave. Since that day I have been immune to the scorpion's venom. Since that day, my dagger carries within it the scorpion's sting"

But she does not have the Immune to Poison trait, or even any resistance to it. she's as vulnerable as anyone else to it. 

Poison isn't the strongest type of attack, being immune to it isn't a big thing. giving her it wouldn't make her overpowered by any means, nor save her from being weak by it's addition. This is more an issue of correctness. She has a poisoned dagger and she SHOULD be immune to poison too, but she is not.

fixitfixitfixit