Rock

Rocks are an often-overlooked Type, though there were many released in The Lost Millennium series. Usually, Rock monsters belong to the Earth Attribute and possess high DEF and defense-related effects. Some Rock Monsters include:


 * Exxod, Master of The Guard
 * Cyber Jar
 * Guardian Sphinx
 * Valkyrion the Magna Warrior

Support cards include:
 * Rock Bombardment
 * Canyon
 * Lost Guardian

Three Field Spell Cards exist that work particularly well with Rock monsters. Wasteland increases the ATK and DEF of Rock, Dinosaur and Zombie monsters by 200. Canyon inflicts double damage to anyone attacking a Defense Position Rock Monster with a weaker monster, and Gaia Power increases the ATK of Earth monsters by 500 points, though it weakens their DEF, an important part of Rock Monsters' strategy.

They also have their own Structure Deck, Invincible Fortress.