Shadow-Imprisoning Mirror

Edison Card Text
① If the effect of a DARK monster is activated on the field/GY, negate that effect.
No targeting
No Damage Step effect
Banlist • Unlimited
Interactions
What happens if Light and Darkness Dragon is on the field under Shadow-Imprisoning Mirror?✓
Shadow-Imprisoning Mirror is face-up and an effect is activated while Light and Darkness Dragon is on the field.
Light and Darkness Dragon will still chain to negate, but its effect is negated by Shadow-Imprisoning Mirror when it resolves.
Does Shadow-Imprisoning Mirror stop Chimeratech Fortress Dragon from gaining ATK?!
Chimeratech Fortress Dragon is Summoned while Shadow-Imprisoning Mirror is face-up.
No. Its ATK is a continuous condition based on materials, not an activated effect, so it still gains ATK normally.
Rulings
edisonformat.net
● This doesn't stop monster effects from activating.
It just negates any effect which does activate (on the field/GY).
● Even if the Physical card is no longer on the field/GY, the effect is still negated.
edisonformat.com
No edisonformat.com ruling available.