Nếu Vật Space Insulator của đối thủ tấn công Gouki The Great Ogre yêu tinh trên sân của tôi, tôi có thể kích hoạt hiệu ứng của Gouki Octostretch trong damage calculation không?

EARTH

2+ "Gouki" monsters All monsters on the field lose ATK equal to their original DEF. If this card would be destroyed by battle or card effect, you can destroy 1 of your monsters this card points to instead.

DARK

2 monsters Monsters this card points to lose 800 ATK/DEF. When a Cyberse Link Monster is Link Summoned to your field, while this card is in the GY, except the turn this card was sent to the GY: You can Special Summon this card to your zone that monster points to, but it cannot be used as Link Material, also banish it when it leaves the field.

EARTH 1

If your opponent's monster attacks, during damage calculation (Quick Effect): You can discard this card; the damage you take from that battle is halved. When your opponent activates an effect that would inflict damage to you (even during the Damage Step) (Quick Effect): You can discard this card; the damage you take from that effect is halved. If this card is sent from the field to the GY: You can add 1 "Gouki" card from your Deck to your hand, except "Gouki Octostretch". You can only use this effect of "Gouki Octostretch" once per turn.