The Raven Queen would want the Warlock to spread out into different people’s lives and lift them up from their difficult situations. She would find satisfaction in knowing that her followers can instill good, benevolent feelings without risking themselves for no gain.
The raven queen is after one thing only – death; continual reaping of souls with no end. Life means nothing to her. It doesn’t get any more evil than that.”
She would most likely look at what warlocks do as being a waste of time, since they use their own life and bind it with another individual rather than just killing someone outright like she does with her captains or other black hearts who have pledged their allegiance to her in 5e D&D lore-wize.
However, the Raven Queen would be amused rather than angry with a warlock, as she would like to see them do good for someone else’s sake and not their own. She’d want those favors to be repaid some time in the future, whether that means saving up 3 spells (1/7 chance of failure), or the Warlock saving the life of another creature in exchange for their own (1/7 chance of failure), or…something in between.
I would say that the Raven Queen would not be a great patron because warlocks follow an entity who is constantly in flux and changes her mind, so to speak, about what she does and does not want. There’s also the idea that her goals are self-serving, whereas many DM’s who have created warlocks in their campaigns would probably not want to put themselves into a position where they must answer or serve this kind of being.
