Error Monster

A mechanic originally made by TUL, but later on used by LHK. They are stored in the Extra Deck, and can be Summoned by fulfilling a condition that is normally not accepted by game rules and mechanics, such as for instance, returning Synchro Monsters to the hand, causing a paradox. However, if an Error Monster leaves the field or is flipped face-down, the controller of that monster loses LP equal to that monster's Level x100.

Examples

 * Gaia, the Necrosaber Knight
 * Rainbow-Eyes Malfunction Error Dragon
 * Rainbow-Eyes Digital Dragon