Houndoom (18/106) [Diamond & Pearl: Great Encounters] 131 you cannot activate Spell/Trap Cards

you cannot activate Spell/Trap Cards or effects

If you Summon this way

Set: Cybernetic Revolution Card type: Effect Monster Rarity: Super Rare Attack: 2100 Defense: 1000 Put 3 counters on this card when you Normal Summon it

Set: Structure Deck: Pendulum Domination Card type: Pendulum/Tuner/Effect Monster Rarity: Super Rare Attack: 600 Defense: 1800 When you take battle or effect damage: You can Special Summon this card from your hand

That monster loses 500 ATK while equipped with this card

Houndoom (18/106) [Diamond & Pearl: Great Encounters] 131 you cannot activate Spell/Trap CardsSet: Diamond & Pearl: Great Encounters Type: Darkness Rarity: Rare Retreat cost: Colorless