This card prevents the activation of your opponent's Effect Monsters.
You can only activate this card when you have a face-up Naturia monster in your field.
Use Landoise's Luminous Moss before initiating an attack on face-down monsters. By doing this, you don't have to worry about flip effects since they will be negated. It also negates the effect of your opponent's Sphere Kuriboh.
Prevents activation of your opponent's Effect Monsters
Activated this also negate the activation of spell/trap field?