Spiral Discharge — Ruling
Effetto 0
- This card can be activated at any time except during the Damage Step.
Effetto 1
- This card's effect that prevents your opponent's monsters from targeting monsters for attacks does not start a Chain.
Effetto 2
- This card's effect that destroys 1 card on the field is an effect that activates on the field. (It targets 1 card on the field and can be activate optionally when an attack is declared involving your Gaia the Dragon Champion.)
Fonte: YGOResources