These cards have their merits, especially if you prefer a more competitive approach to Commander, but if you find yourself conflicted about including them, its completely justifiable to keep playing what you enjoy instead
Like most Magic: The Gathering cards, the value of Gray Harbor Merfolk depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Commander Legends: Battle for Baldur's Gate)
The cardboard backing of miniature packs is not graded
Check out Tomik, Distinguished Advokist, Fblthp, the Lost, Massacre Girl,Krenko, Mob Boss, and Birds of Paradise
I honestly think this art will be a big selling point for the set