
Creatures don't untap during their controllers' untap steps.
Whenever a creature enters, untap all creatures.
Intruder Alarm has 7 printings, first in Stronghold (1998). EDHREC ranks it #1,744 among Commander cards. It appears most in Helga, Skittish Seer decks (7,006 on EDHREC). It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.