Shadow Balance

Card type	Monster
Attribute	TRAP"TRAP" is not in the list (DARK, DIVINE, EARTH, FIRE, LIGHT, WATER, WIND, ?, ???, THUNDER, ...) of allowed values for the "Attribute" property.
Activate only when your opponent Summons a monster, and they have more monsters on the field than you. Select a number of their monsters equal to the difference, and destroy them.

In other media

Page	Medium	Debut date
Devil's Scales (manga)	Manga	2000-02-28