Lost Library

Lost Library is a Mage type Trap Room introduced in Boss Monster: The Next Level

Strategy Edit

This card is best built over a room with an uncover effect. This card can be built, and saved for later, when the player would need a Spell card.

The player could choose to discard a Spell card that was in their hand prior to activating this card's ability.

Trivia Edit

It was noted in an update by The Brothers that this card works a lot like Dark Laboratory, which it in fact does, albeit with a different activation requirement.

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