You won't find value in it every game, especially if you're effectively controlling the board with all of your direct damage tools, but if you find it at just the right time you can gain a two, three, or even four lore instantly, which is often enough to close out a match in a deck like this
Adeline, Resplendent Cathar is actually most known for its role in the Pioneer Humans archetype since its rotated out of Standard
But declare an attack with JC, and its 10,000 Needles ability balloons it into a massive 10,000-power Freight Train of Death that guarantees it'll deal lethal damage to any creature blocking it or one-shot any opponent if it connects
Alternatively, you could spring for one of the two starter decks for this set: either the Amber/Ruby deck with Jim Hawkins and Tigger, or the Emerald/Sapphire deck starring Go Go Tomago and Gadget Hackwrench
Of course, there are plenty powerful locations and even items you are going to need to deal with