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Mausoleum Secrets [Guilds of Ravnica Promos]
| Set: | Guilds of Ravnica Promos |
| Type: | Instant |
| Cost: | {1}{B} |
Undergrowth — Search your library for a black card with converted mana cost less than or equal to the number of creature cards in your graveyard, reveal it, put it into your hand, then shuffle your library.
