V Mega Clan Booster 4: Refinement of the Mechanical Systems

"Refinement of the Mechanical Systems" is the 4th V Mega Clan Booster in the fan-made Sovern universe of Cardfight!! Vanguard.

Contents

 * Includes 100 cards (2 GR, 8 RRR, 14 RR, 26 R and 50 C) + 2 SGR (Parallel) +14 SP cards.
 * There are 100 new cards.
 * Each pack includes 7 cards (1 RR+, 2 R, 4 C)
 * Includes further support for the Nova Grappler clan.
 * Features support for the Asura, Blau, Death Army, Raizers, Ring Girls, Boy, Extreme Battlers, Rutile, and two other archetypes.