Card Rules: Rulings powered by The Netrep API. A face-down 'Big Shield Gardna' can only negate a Spell Card that targets 1 face-down monster , so it cannot negate 'Riryoku' 'Creature Swap' or 'Dark Hole' but could negate 'Nobleman of Crossout' or 'Tribute to the Doomed'. If 'Big Shield Gardna' is targeted with a Spell Card you may chain 'Book of Moon' to flip it face-down then it can negate the Spell Card and will flip back to face-up Defense Position. 'Skill Drain' only negates the effects of monsters that are face-up on the field so a face-down 'Big Shield Gardna' may still negate a Spell Card that targets it while 'Skill Drain' is active on the field.It will still be flipped to face-up Defense Position and now its effect that changes its battle position when it is attacked will be negated. If 'Prickle Fairy' attacks a face-down 'Big Shield Gardna' both their effects will occur at the end of the Damage Step. 'Prickle Fairy' will be Step 1 and 'Big Shield Gardna' Step 2. So it will change to Attack Position and then the effect of 'Prickle Fairy' will change it back to Defense Position. Passcode: 65240384 Set: Duelist Pack: Yugi Moto ATK/DEF: 100/2600 Card Number: DPYG-EN009 Monster Type: Warrior Rarity: Common Attribute: Earth Card Text: Negate the activation of a Spell Card that designates this 1 face-down monster. At that time flip this card into face-up Defense Position. If this card is attacked change it to Attack Position at the end of the Damage Step. Level: 4 Card Type: Effect Monster Name: Big Shield Gardna Edition: 1st