Dinomist Plesios – Breakers of Shadow (Common)

[ Pendulum Effect ]
Once, while this card is in your Pendulum Zone, you can negate an activated card effect that targets another “Dinomist” card(s) you control, then destroy this card.

[ Monster Effect ]
All face-up monsters your opponent controls lose 100 ATK and DEF for each “Dinomist” card you control.