This is going to be one to watch for lovers of deep Magic lore, not least because it contains characters that weren't featured in the main set - because they're dead
Each set has an entirely different symbol, so your best option is to google search for a list of them and compare your cards to it
Walmart Wednesday Drop on July 22nd Today's Drop Predictions What you need to know Walmart restocks Pokemon cards every Wednesday at the same time Refresh the above links exactly at 9PM ET The sets that will restock are sometimes announced in advance, and sometime there are surprises You usually don't need a Walmart+ membership to get the cards Yes, it's easier because you know the time of the drop, but it's also not an easy drop because of many collectors trying to score a pack Important
But they both "replace" themselves in terms of mana, making for easy ramp, and can be traded for another card at any point in the game (ideally once the field is full of other artifacts)
Mitsurugi Card Breakdown Heres a look at the key cards that make Mitsurugi so dangerous: Monsters Ame no Habakiri no Mitsurugi - Weakens all opponents monsters by 800 ATK, can Special Summon a Mitsurugi from the Deck once per Duel, and when Tributed, searches any Mitsurugi card and revives itself