Opening Two Valiant Smashers Yugioh Booster Boxes TCG 

It's hard for them to be good. It's not like rescue ace that with 1 support they got good. The reason R-ACE was good it's because it can recover cards from gy and banish zone. Memento needs like 2 or 3 really good cards for it to be good. The kuriboh memento isn't really good tbh. And the deck conflicts with himself. It requires your boss to be alone yet it summons from the graveyard in multiple ways, so it's hard to get the boss monster full potential. Some people want an extra deck monster but I think it needs another boss that could return banished cards or be indestructible, another monster that activates his effect in hand to search anything or a continuous spell that makes the boss untargetable or indestructible by opponent card effects. Almost all decks can banish the boss monster without effort so... Yeah we have it hard. Right now it's like 80 bucks the whole deck, next moth probably it will go down at 40 dollars.

@malfeasancewithornament7573 I mean the ghost does recover 1 card to hand which isn't too bad, but we already know it's getting at leadt 1 ED monster so hopefully it can prevents the s/t from being destroyed by destroying another memento monster in hand or field