Galactic Overlord is a Core Booster in the Yu-Gi-Oh! Official Card Game (OCG) and Yu-Gi-Oh! Trading Card Game (TCG). It is the eighth and final Core Booster of Series 7. It follows Order of Chaos and is followed by Return of the Duelist.
The set features cards from the Yu-Gi-Oh! ZEXAL anime series, including cards used by Yuma Tsukumo, Reginald Kastle, Kite Tenjo, Dextra, Nistro, Trey, Anna Kaboom, Cameron Clix and Cody Callus. The TCG version of the set also includes cards used by Yusei Fudo, Jack Atlas, Fortuno and Charlie McCay.
It includes support for Xyz Monsters, the archetypes "Photon", "Gagaga", "Evol", "Watt", and "Inzektor", the Types Spellcaster, Dragon and Zombie and the Attributes WATER, WIND and LIGHT.
In the TCG, each pack contains 9 cards and each box contains 24 packs. There are 100 cards, or 111 in the Master Set. This comprises:
1 Ghost Rare
8 Secret Rare
10 Ultimate Rare
10 Ultra Rare
14 Super Rare
20 Rare
48 Common