During either player's turn, when this face-down card (and no other cards) is targeted by a Spell Card: Change this card to face-up Defense Position, and if you do, negate the Spell Card's activation. If this card is attacked, change it to Attack Position at the end of the Damage Step.
How to Get / Rarity
300 EX Jewels [UR]
Big Shield Gardna (BSG) is one of the well known monster cards that has been introduced since the original series. With a high DEF of 2600, you are very likely to inflict defense battle damage when the opponent attacks this set card. However, BSG is defeated easily if the opponent has more than one monster on the field to forcibly trigger BSG’s effect provided they have the LP to tank the first hit.
BSG is best used with lockdown decks or as a tribute fodder due its vulnerable effect. Avoid having too many BSGs in your deck if you are not building a lockdown deck as its effect is a double edged sword and should not remain on the field for too long once flipped face-up.
Regardless, econ was still used in most decks back then. With stuff like Inverse Universe, Ojama Country, and Super Rush Headlong existing, it is definitely better. Also being immune to cards like Tribute of the Doomed and Magic Triangle of the Ice Barrier when Set can be useful. People would just rather use meta decks.
Why are people wasting EX jewels and UR ticket on this when you could just go into the card trader's inventory?
The penalties that apply to you don't apply to the vagabond. If it says "no effect activation", it means "YOU can't activate effects". It's the same way you don't start with three monsters when it says "start with three opponent monsters", your opponent doesn't start with 1000 life, doesn't lose monster or tragic zones, and can special summon things if you can't.
Nice of them to bring this back in the anniversary UR ticket.