![Intruder Alarm [Mystery Booster]](http://cardmerchantnelson.co.nz/cdn/shop/files/83285fae-2a52-5249-9531-a71b59518b75_800x.jpg?v=1712093053)
![Intruder Alarm [Mystery Booster]](http://cardmerchantnelson.co.nz/cdn/shop/files/83285fae-2a52-5249-9531-a71b59518b75_1024x.jpg?v=1712093053)
Description
| Set: | Mystery Booster |
| Type: | Enchantment |
| Rarity: | Rare |
| Cost: | {2}{U} |
Creatures don't untap during their controllers' untap steps.
Whenever a creature enters the battlefield, untap all creatures.
Whenever a creature enters the battlefield, untap all creatures.
One footstep among many is silent. One footstep alone is deafening.
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