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Significant deviation suggests tampering Seller reputation : For sets with high-value promo cards, purchase from established sellers with return policies Certificate verification : For individual graded cards (Mew UR, promo cards), verify PSA/BGS certification numbers directly on the grading service website Frequently Asked Questions How many cards are in the S8A 25th Anniversary Collection

Even if there were a deck using Manlands (lands that turn into creatures, ahem) and Crucible of Worlds, so that there might be a reason someone might care enough to try to bring them back into play, there are far more effective cards that can simply destroy their graveyard entirely

Swarmyard looks like the secret sixth member of that cycle