2013 was a pretty amazing year in NPB. In the Central League you had Wladimir Balentien chasing (and eventually passing) Sadaharu Oh's record for most home runs in a season (which was actually shared by Tuffy Rhodes and Alex Cabrera but they did it in the Pacific League) while in the Pacific League you had Masahiro Tanaka chasing an undefeated season - eventually ending the season at 24-0 while leading the Tohoku Rakuten Golden Eagles to their first ever pennant and Nippon Series championship. It was a lot of fun for me to follow here on the East Coast of the US, waking up every morning to see what the two of them had done or (even better) getting to tune in via Justin.tv to watch them do it.
BBM published a box set in November of 2013 that celebrated Tanaka's 24-0 season. It was called something along the lines of "Unbeaten Legend" although according to Ryan, the kanji for the title could also be translated as "Invincibility Myth". I like the name "Invincibility Legend" myself so that's what I've been going with.
The base set contains 27 cards. 24 of these cards commemorate each of Tanaka's wins in 2013 (regular season only, not the Climax Series or Nippon Series). The front of these cards shows a picture from the game in question while the back has the line score and other information about the game:
|Back of #01|
Here's some of the other cards for the victories:
The final card in the set is a shot of Tanaka with the idol group Momoiro Clover Z, of whom he apparently is a big fan.
You can see all the base set cards over at Jambalaya. Ryan's post on the set goes into some detail about the premium cards that were also in the box with the base set.