Mind Master

 This monster appears in the artworks of Column Switch, Mind Over Matter,  Psychic Trigger, Psychic Path, Telekinetic Power Well, and Brain Research Lab.

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The symbol on the glass dome that encases its brain resembles the universal symbol for power, commonly found on the power buttons of many electronics.

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This card originally had the text You can pay 800 Life Points to Tribute 1 Psychic-Type monster you control to Special Summon 1 Level 4 or lower Psychic-Type monster from your Deck in face-up Attack Position., but was given an errata soon after it was released. This is the first case in which Konami announced a card errata on their website.

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It is the first Psychic monster to become Forbidden.

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== References ==

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OCG Rulings

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Paying 800 Life Points and Tributing 1 other Psychic-Type monster is a cost.: Effect Monster > Mind Master

You cannot Tribute: Can "Mind Master" Tribute itself for its own effect?

You can activate this effect multiple times during the same turn if you can continue to pay the cost.

Previously Official Rulings

Paying 800 Life Points and Tributing 1 other Psychic-Type monster is a cost.

You can activate this effect multiple times during the same turn if you can continue to pay the cost.

"Mind Master's" effect cannot be activated if you do not have any Level 4 or lower Psychic-Type Monsters in your Deck that you can Special Summon.