Intruder Alarm
Enchantment
Creatures don't untap during their controllers' untap steps.
Whenever a creature enters, untap all creatures.
One footstep among many is silent. One footstep alone is deafening.
Luca Zontini
The List (PLST)
• #8ED-86Rulings
If multiple creatures enter the battlefield at one time, this ability triggers once for each of those creatures.
(wotc • 2023-09-01)
Rulings
If multiple creatures enter the battlefield at one time, this ability triggers once for each of those creatures.
(wotc • 2023-09-01)