how many packs are in a vivid voltage booster box Pokemon Sword & Shield Massive Energy (4x)Pokemon VIVID VOLTAGE (10card booster

These are the ones that can carry games, stick around when things get messy, or force your opponents into tough spots

It's potentially pretty unfun, but if your Zur deck isn't often casting multiple spells you should consider Rule of Law/Arcane Laboratory if your opponents won't revolt, Zur already cheats out an enchantment and you can make tokens with mana, how many spells do you really end up casting compared to people playing more traditional decks

Not because they are too young to have a price history, but because as raw singles, most of them trade under $20

Generally, the best time to buy a card is about two weeks after a set has come out