Steel Shell (TSC)
- Hagane no Kōra
#308: Beast Fangs
#310: Vile Germs
"Steel Shell" can be purchased in the shop.
- When the player wins a Duel, up to 50 cards are added to the shop. Each has an intended probability of 27/30,000 being this card. But due to a bias in the random number generation, it is actually a probability of 54/65,536.
- When the player enters this card's password (02370081), it appears in the shop.