Deck Master ability

In the Virtual Realm arc of the Anime, each duelist chooses a monster in their deck known as a "Deck Master." These Deck Masters stay off the field until the players decides to bring them in. Each monster has their own effect. If a player's deck master is destroyed, he/she loses the duel.

List of Deck Masters:
 * Kuriboh: Had the effect of Multiply when it is Summoned to the field.
 * Dark Magician Girl: Remove from play all monsters in your Graveyard. Draw 1 card from your deck for each monster removed by this effect. You can only use this effect once per duel.
 * Flame Swordsman: Decrease the ATK of this card by any amount to increase the ATK of a Warrior-Type monster by the same amount.
 * Strike Ninja: Discard 2 cards from your hand to the Graveyard to activate a face-down card on the field as if it was your own.
 * Super Roboyarou: When this card battles with a monster, you may set a Spell or Trap Card from your hand to the field.
 * Goddess with the Third Eye: Discard 1 Spell Card from your hand to the Graveyard. Send Fusion-Material Monsters that are listed on a Fusion Monster Card and Fusion Summon that Fusion Monster from your Fusion Deck.
 * Lord of D.: Pay 500 Life Points to Normal Summon an extra Dragon-Type monster.
 * Dark Magician: Pay 1000 Life Points to duplicate the effect of a Spell Card on the field.
 * Kaiser Sea Horse: You can Summon a LIGHT monster with one less tribute (So a monster that requires 1 tribute now requires none while a two tribute monster would require 1).
 * Deepsea Warrior: When your opponent declares an attack with a monster, you can activate this effect. Offer two monsters on your side of the field as a Tribute to negate the attack and inflict damage to the opponent's Life Points equal to the attacking monster's ATK points.
 * Nightmare Penguin: Increase the ATK of all WATER monsters on your side of the field by 200 points.
 * Judge Man: Pay 1000 Life Points. Destroy all monsters on your opponent's side of the field and inflict damage to your opponent's Life Points equal to the number of monsters destroyed X 500 points.
 * Robotic Knight: Discard 1 Machine-Type monster from your hand to the Graveyard to inflict 500 points of damage to your opponent's Life Points.
 * Jinzo: All opponent's Trap Cards are useless.
 * Shinato's Ark: All monsters that go the Graveyard go into this ark instead. Remove any amount of monsters in the ark from play to increase your Life Points by an amount equal the number of removed monsters X 500 points.
 * Shinato, King of a Higher Plane: When this card destroys an opponent's monster as a result of battle, reduce your opponent's Life Points by half. When a monster inflicts battle damage to your opponent's Life Points, increase your Life Points by the same amount. While this card is on the field and is affected by the effects of a Spell, Trap, or monster effect, sent this card back to Deck Master zone. If you use this effect, this card cannot be Summoned to the field for the remainder of the duel.