Chord of Calling (2XM-158) - Double Masters - Magic The Gathering Number_RC14 uncovering the lairs comes with

uncovering the lairs comes with a cost: Players must discard three color items before the lair token can be flipped over to reveal which monster's hideout they've discovered

Introducing the 1st Expansion Pack for Poetry for Neanderthals - More Cards Box 1

it's flipped over and the layout underneath becomes visible

9 Marvel's Spider-Man Play Boosters (14 cards per booster)

with unique sub-collections

Chord of Calling (2XM-158) - Double Masters - Magic The Gathering Number_RC14 uncovering the lairs comes withCondition: Near Mint. Image is sample only. Real cards may vary slightly in centering, colour, or print details. Card TypeInstant RarityRare Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.