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Its an easy way to fill the bin for cards that care about having a mass of cards in the graveyard, like delve spells or cards with delirium

Probably the only really generally useful card here is Lrien Revealed

These sets command high secondary-market prices and are best purchased as singles unless you're drafting or seeking specific foil variantsbooster packs offer poor value here compared to newer releases

There arent any golden rules for this just analyse the metagame and, if other graveyard decks arent too popular, theres a chance people will ignore those strategies a bit

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This is more often sided into Decks if three Effect Veilers and/or Infinite Impermanences are not enough, or in certain WIND archetypes that synergize with this card