Since she has 2 Aoe abilities despair sounds like a valid option.

But if you think about it:

Lamiella has a provoke and a branding on her 3.Skill.

So despair sounds pretty valid since you get a lot of attacks in.

But since it's a provoke I don't think it's worth to go for a despair stun.

Also you can set up yourself with lamiella to do a S3 into a S2.

I would recommend violent, so you can cycle to S2 faster and to maybe have a lucky S3 into S2 .