Equilibrium Monsters (Japanese: エクイリブリアムモンスター Ekuiriburiamu Monsutā, abbreviated as
Mechanics
This Monster Card type works as an extension for Pendulum Summoning. It can be played in your Monster Zone or the "Equilibrium Zone(E-Zone)". It is treated like a monster if it is in the monster zone and treated as a trap while in the Equilibrium Zone. Normally you can Pendulum Summon monsters as long as their levels are between your Pendulum Scales, this new mechanic helps you summon monsters from your hand and/or face-up Extra Deck outside your Pendulum Scales as long as the the monsters are in the same Level as the number in that Equilibrium Monster's "Equilibrium Scale (E-Scale)".