He and Arondir would have an interesting relationship, I’ve been trying to think up conversations between them. I think Arondir would be horrified by him, that an uncorrupted elf would willing support this, but it’s clear how dazed and weary he is.

He helps to advise Adar on decision making and ruling he often has cooler headed sight on matters Adar does not, and he despises Waldreg. I think early on Waldreg would make some bad remarks to him & Nîrndîr just finds him a bootlicking bumbling fool.