Card Trivia:Koa'ki Meiru Guardian

• This card was released as one of the 3 Raging Battle preview promos released in the Duelist Pack Collection Tin 2009.

• Despite being a Rock-Type monster with "Guardian" in its name, its DEF is much lower than its ATK.

• This card has a Trap Card-negating counterpart, "Koa'ki Meiru Sandman", and a Spell Card-negating counterpart, "Koa'ki Meiru Wall". All three cards have the same ATK, DEF, Attribute, Type, Level, and maintenance costs.