Cosmo Blazer is a Booster Pack in the Yu-Gi-Oh! Official Card Game (OCG) and Yu-Gi-Oh! Trading Card Game (TCG). It is the third set in the OCG's 8th series, following Abyss Rising. It is followed by Lord of the Tachyon Galaxy.

This set is the first since Cybernetic Revolution to be printed in Portuguese.

9 cards/pack.