Crystal Beast

The Gembeasts made their first appearance in Yu-Gi-Oh! GX. They are used by a boy named Jesse Andersen. In the OCG and the japanese version of the anime, they were called the "Gembeasts".

Monster Cards

 * Crystal Beast - Ruby Carbuncle
 * Crystal Beast - Emerald Turtle
 * Crystal Beast - Cobalt Eagle
 * Crystal Beast - Amber Mammoth
 * Crystal Beast - Amethyst Cat
 * Crystal Beast - Sapphire Pegasus
 * Crystal Beast - Topaz Tiger
 * Rainbow Dragon, the Ultimate Gemlord

Spell Cards

 * E-Force
 * M-Force
 * Rainbow Ancient City - Rainbow Ruin
 * GEM Burst
 * Gem's Blessing
 * Gem's Flood
 * Gem's Guidance
 * Rare Value
 * To the Wings
 * Gem Release
 * Gem's Contract
 * Gem's Tree
 * Gem's Radiance
 * Rainbow's Blessing
 * Prism Wall

Trap Cards

 * G-Force
 * Gem's Invocation
 * Last Resort
 * Gem Formation - Amber
 * Gem Set
 * Gem Fortress
 * Gem Flash Energy