Intruder Alarm
SLDSecret Lair Drop/#229/2021RareBorderlessReprint
Colour IDMV 3
Current paper retail
Card Kingdom$15.99
Cardmarket€7.68
ManaPool$11.57
TCGplayer$13.04
Buylist (dealers pay)
Card Kingdom$8.00
Paper retail history (USD)
3 providers
Latest $15.99High $15.99Low $9.99▲ 33.4%
Market and collecting
Market overview
$13.04TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-10
7d▲ 0.8%30d▲ 0.9%90d▲ 11.8%
90d high
$13.11
90d low
$11.66
Paper printings priced
7
Currently 6th
Cheapest paper printing
$3.92
Avatar: The Last Airbender Eternal
- Up 0.9% over the last 30 days on TCGplayer.
- Trading at or near its 90 day high of $13.11.
- This printing is the 6th cheapest paper printing currently priced (7 priced in total).
- Foil copies of this printing carry a 7% premium over nonfoil.
Find this printing on eBayView on TCGplayerAffiliate. MTGPrices may earn from qualifying eBay and TCGplayer purchases.
Collect
Play
Compare printings (7 priced)
Gameplay and rules
Enchantment
Creatures don't untap during their controllers' untap steps.
Whenever a creature enters, untap all creatures.
Card capabilities
Enchantment
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Rulings (1)
wotc1 Sept 2023
If multiple creatures enter the battlefield at one time, this ability triggers once for each of those creatures.
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Ranked by shared capabilities, colour identity, mana value and type. Never by strategic judgement.
Shares EnchantmentSame colour identity
Shares EnchantmentSame colour identity
Shares EnchantmentSame colour identity
Shares EnchantmentSame colour identity
Shares EnchantmentSame colour identity
Shares EnchantmentSame colour identity
Shares EnchantmentSame colour identity
Shares EnchantmentSame colour identity
About this card
Intruder Alarm
Intruder Alarm is an Enchantment, with mana cost {2}{U} (mana value 3). Printed 7 times across MTG sets.
Format legality: Commander: legal, Modern: legal, Standard: not_legal, Pioneer: not_legal, Legacy: legal, Pauper: not_legal.
Current headline price on TCGplayer: $13.04 (up 0.9% over 30 days).
Frequently asked
Intruder Alarm FAQ
How much is Intruder Alarm worth?
The current TCGplayer USD retail price for Intruder Alarm is $13.04. It is up 0.9% over the last 30 days. Over 90 days it has ranged from $11.66 to $13.11.
What is the cheapest printing of Intruder Alarm?
The cheapest currently priced paper printing is from Avatar: The Last Airbender Eternal at $3.92 on TCGplayer.
What is the most expensive printing of Intruder Alarm?
The most expensive currently priced paper printing is from Eighth Edition at $108.00 on TCGplayer.
How many printings of Intruder Alarm are there?
Intruder Alarm has been printed 7 times in English paper sets that MTGPrices tracks.
What set was Intruder Alarm first printed in?
The earliest English paper printing that MTGPrices tracks is from STH #34, released 1998-03-02.
What is the newest printing of Intruder Alarm?
The most recent English paper printing that MTGPrices tracks is from TLE #15, released 2025-11-21.
Is there a foil version of Intruder Alarm?
Yes. On this printing, foil copies trade at $13.99 versus $13.04 for nonfoil, which is 7% more expensive on TCGplayer.
Is Intruder Alarm legal in Commander?
Yes, Intruder Alarm is currently legal in Commander per Scryfall's legality feed.