This all sounds good! Feel free to approach Surion on his contact post whenever you are ready.

Taking down a Satyr will acquire some assistance. Taking down an elf will be much easier, but reap reputation consequences unless Qilby is clever enough to cover his tracks somehow (which I believe he is).

You will reap the above rewards upon completion of your deeds. If you would like troll NPCs and a log for blood rituals, we can make that happen. If you would prefer to handwave, that is also fine.