Collection of Memories

Collection of Memories is the second booster pack of the HCCG, following Light Beginnings. It has a total of 150 cards. This pack contains cards made by Hippocampus, DarkDragon, Chris, and Lunateam, and they were all made in the years 2010 and 2011.

This set introduces the first Synchro Monsters to the game, as well as moves the focus of the game more toward Effect Monsters and archetypes. It also contains many Thunder and Beast monsters, as well as introduces the Tanooki, Ice Devil, LuckySoul, - Familiar, and Major Chord archetypes to the HCCG, and it provides further support for the Catty, Charmer, and Familiar-Possessed archetypes.