Booster Set 1: Great Dragon's Journey!

"Great Dragon's Journey" is the 1st Booster Set  

Features

 * Contains 105 cards (1 BR/8 RRR/12 RR/24 R/30 UC/30 C) + 12 SP.
 * Includes support for Dragon World, Katana World, Magic World, and also Generic cards.
 * Introduces Double Attack and Set keywords.
 * Each booster contains 5 random cards, one of them definitely being R or greater.