Not only can these items be factored into your net worth, but selling collectibles can add to your retirement nest egg or help generate some fast cash in an emergency
While I won't be jamming Robber of the Rich into just any Red deck, I think the card can do serious work in any deck that cares about attacking and has plenty of ways of giving creatures evasion
To ensure a card is genuine, check the seller's reviews, look for official logos and trademarks on the packaging, and compare it with images of authentic cards
Doubling triggers always amps up the value, but maybe a deck is better served by an artifact, like Panharmonicon, which is inherently less vulnerable
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One factor that exacerbates our advantage is that the vast majority of your opponents will not have tested the matchup, and will largely be devising their own strategy on the fly