Gigantic replacement effect cards like this may not do much on their own, but they create incredible amounts of value over time in a focused strategy
Not only will this item generate four lore from its cost, you can also exert it to add an extra lore to Magica De Spell, The Midas Touch for when she initially quests, bringing her up to a five lore quester nice and early in the game
While the fact that your opponent gets to draw two cards after this song is played is a small bummer, it probably wont have any negative impact at all most of the time given how good Emerald is at discarding cards
Besides its art, Belle, Hidden Archer is also a great emerald card thanks to its gameplay mechanics
Following an ancient map, you'll sail the beautiful yet unpredictable Azurite Sea
An added advantage of having Cursed Merfolk exerted on your field is that your opponent will be forced to discard a card when challenging it, giving you a leg-up on hand resources as well as lore