Lighthouse virgin here. Never been there. I am trying to get all the grimoire and not being able to get this one is kinda painfull... it's like no matter how many hours you spend, you'll never 'finish' this game. Have been sweaty in raids and some other events but this just seems impossible. It's been a long time to feel the joy of completing something difficult in Destiny for the first time. I'll join twitch and see if I'll get lucky. Good job and very nice of you. There are plenty of people like me so you are doing this community a huge favor!