5 Charizard GX (Ultra Rare) $5.52 A Humbling Finish Charizard usually finds itself at or near the top of the most valuable cards, like in the base set, or more recently, among the most expensive Champion's Path cards
There are plenty that could be good but dont make the list because their color identity is too narrow to play in the limited cascade card space, like Mizzix, Replica Rider, Kellan, the Kid, Prosper, Tome-Bound, Satoru, the Infiltrator, and Etali, Primal Conqueror / Etali, Primal Sickness
Features: Acid-free, PVC-free safe to store your cards in long-term
Otherwise, search for Demise and Advanced Ritual Art using cards like Manju and the Impcantations
Catch you at the Barre
[/spoiler] [spoiler=Sound Wave Striker] Activate only if you control a "Damning Devil" XYZ monster: target one monster your opponent controls: its effect is negated until the end phase