I had the idea, "What if Bard defended Lake-Town with the help of the lake?" Followed that with some light research, and wouldn't you know it, in the older texts of the Tolkien Legendarium, there were indeed mentions of water spirits and merfolk! - Kindred, but modal: Precons tend to be a "pick your style" upgradable deck, so I wanted to include some solid Merfolk along with humans, and keep the types mostly focused on those creatures. There are a few thematic but not quite Merfolk or Human creatures in the deck, namely Goldberry and Unagi. I think they fit the theme and deck goals well enough to include. - Themed Spells: Dive Down, Fight as One, and the Crescendo cards are meant to be symbolic of the landfolk and lakefolk working together. Not true of every card, but true of at least a few! The deck should mostly try to win through commander damage or a wide enough board that Starlight Spectacular, Candlekeep Inspiration, or Herald of Secret Streams can eliminate the player with the most likely chance of breaking up the alliance.