This is really interesting to learn about, but I feel like I'm stepping into a 300 level discussion when I should start with a 101 level seminar... Do you have any links or posts on the topic at an introductory level?

I've been working on the opposite- a warlock in service of Istus with a familiar that takes the form of a cherub or holy sprite. Carrying out merciful acts of "rest" for the inevitable. Pact of the chain, pact of the blade (a divine weapon opposite of a scythe, not sure yet).