I imagine Adar is a non-cannon "cousin" (or brother) of Maeglin, supposing Amazon chose not to ask (or did not receive) the rights to Maeglin; he was another elf who grew up in BD, got shunned by the local kingdoms, and made his way to the service of Morgoth.
I'm leaning towards Istari for Meteor Man, but hopefully not Gandalf.
I'm leaning towards Istari for Meteor Man, but hopefully not Gandalf.