Cavalry of Black Steel is the 3rd Extra Booster Set released in Japanese, and the 1st released in English.

Contents:

- There are a total of 35 different cards (2 RRR, 5 RR, 8 R, 20 C + 6 SP). 12 additional cards (2 R, 10 C) were added to the set for the English release.

- This pack will feature Gold Paladins, Royal Paladins, Shadow Paladins, Kager?, Spike Brothers and Megacolony units that feature the skill Limit Break and includes boosts for these clans.

- Cards are used by the characters in the Season 2 of anime

- The package have Ren Suzugamori and Spectral Duke Dragon on it.

5 Cards/Pack.