Core Booster

Nine series of Core Boosters. Packs follow a color pattern.

A Core Booster,^[1] known in Japan as Basic Pack (基（き）本（ほん）パック Kihon Pakku), is a booster pack product line in the Yu-Gi-Oh! Trading Card Game and Yu-Gi-Oh! Official Card Game. They are the primary product for releasing new cards, with almost all included cards being printed for the first time.

Core Boosters can be bought at almost all stores where Yu-Gi-Oh! card game products are sold.

TCGEdit

TCG Core Boosters contain 9 cards each. The exact breakdown of a Core Booster has varied over time.

First set	Last set	Contents	Final card probabilities
Eternity Code (April 2020)	present	8 Commons 1 higher rarity card	1/6 chance of Ultra Rare 1/12 chance of Secret Rare Otherwise Super Rare
Breakers of Shadow (January 2016)	Ignition Assault (January 2020)	7 Commons 1 Rare 1 higher rarity card	1/6 chance of Ultra Rare 1/12 chance of Secret Rare Otherwise Super Rare
The Duelist Genesis (September 2008)	Dimension of Chaos (November 2015)	7 Commons 1 Rare 1 Common or higher rarity card	1/4 chance of Super Rare 1/12 chance of Ultra Rare 1/24 chance of Secret Rare Otherwise Common
???	Light of Destruction (May 2008)	8 Commons 1 Rare or higher rarity card	1/4 chance of Super Rare 1/12 chance of Ultra Rare 1/24 chance of Secret Rare Otherwise Rare