Great thread! I would love to see this updated whenever possible. :)
I love Lightning Plover; think it is a lovely card for wind types and is a difficult one to deal with if you have no response.
Reaper of Prophecy gives Prophecy's that dark Spellcaster option from deck now, since most decks I have seen don't run it. It's effect isn't bad, but you normally struggle to have a high number of spellbooks in grave, when you are using Towers effect; one for testing in my opinion.
Mermail Abyssdine is crazy, crazy good. Mermails are just getting so much spot light recently and cards like this will only add to it.