Insidious Bookworms (CST-51a) is a common black Creature — Worm from the Coldsnap Theme Decks. When it dies you may pay {1}{B} to have a target player discard a card at random. Its low cost and discard-trigger on death make it a disposable threat or sacrifice fodder in graveyard or discard-focused strategies.

Identity & printing

Name: Insidious Bookworms
Number: 51a
Rarity: Common
Variant: Normal
Language code: EN

Type line & stats

Subtypes

Market prices (catalog API)

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Catalog pricing data as of 26 Apr 2026, 11:19

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Worm

Types

Creature

Catalog metadata

Imported from: Vendor Tools Public API catalog

Rules

When this creature dies, you may pay {1}{B}. If you do, target player discards a card at random.

Set, artist & references

Artist: Greg Simanson
Language: English
Set name: Coldsnap Theme Decks
Game name: Magic The Gathering

In play

Abilities, attacks, weakness & resistance

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Description

Insidious Bookworms (CST-51a) is a common black Creature — Worm from the Coldsnap Theme Decks. When it dies you may pay {1}{B} to have a target player discard a card at random. Its low cost and discard-trigger on death make it a disposable threat or sacrifice fodder in graveyard or discard-focused strategies.