Card Rules: Rulings powered by The Netrep API. Discarding your hand is not a cost for either player. 'Card Destruction' can be activated if either player has at least 1 card in his/her hand (not including 'Card Destruction'). If your opponent has 1 or more cards in his/her hand and you only have 'Card Destruction' in your hand , you can activate 'Card Destruction'. If your opponent has no cards in his/her hand and you have 'Card Destruction' and 1 other card in your hand you can activate 'Card Destruction'. If your opponent has no cards in his/her hand and you only have 'Card Destruction' in your hand you cannot activate 'Card Destruction'. [Re: Doomcaliber Knight] When multiple Effect Monster effects activate simultaneously 'Doomcaliber Knight's' effect is chained after determining the order of the Effect Monster effects (see the Advanced Rulings FAQ 'Simultaneous Effects) and will negate the Effect Monster's effect that was placed last on the Chain.Example 1: Player A Tributes her 'Sangan' and 'Witch of the Black Forest' to Tribute Summon 'Dark Magician'. 'Sangan's' effect is Chain Link 1 and 'Witch of the Black Forest's' effect is Chain Link 2. The effect of Player B's 'Doomcaliber Knight' is chained and it will negate 'Witch of the Black Forest's' effect.Example 2: Player A and Player B have 'Goldd Wu-Lord of Dark World' in their hand and Player A controls 'Doomcaliber Knight'. Player A activates 'Card Destruction'. When both copies of 'Goldd Wu-Lord of Dark World' are discarded their effects start a Chain. Player A is the turn player so his 'Goldd Wu-Lord of Dark World' is Chain Link 1 and Player B's is Chain Link 2. 'Doomcaliber Knight's' effect is chained and it will negate Player B's 'Goldd Wu-Lord of Dark World'.Example 3: Player A's 'Giant Rat' is destroyed in battle and sent to the Graveyard while she has 'Green Baboon Defender of the Forest' in her hand and 'Doomcaliber Knight' is face-up on the field. Player A can activate 'Giant Rat' and/or 'Green Baboon Defender of the Forest's' effect. If she activates both effects she chooses the order the effects are placed onto the Chain and 'Doomcaliber Knight' will negate the effect that is placed highest on the Chain. If 'Green Baboon Defender of the Forest' is Chain Link 1 and 'Giant Rat' is Chain Link 2 'Doomcaliber Knight' will negate 'Giant Rat'.Example 4: If 'Sangan' is Tributed to Tribute Summon 'Raiza the Storm Monarch' while 'Doomcaliber Knight' is face-up on the field 'Sangan's' effect is Chain Link 1 and 'Raiza the Storm Monarch's' effect is Chain Link 2. 'Doomcaliber Knight's' effect is chained negating 'Raiza the Storm Monarch's' effect and destroying it.Example 5: Player A's 'Sasuke Samurai #4' attacks Player B's 'Neo-Spacian Grand Mole' while 'Doomcaliber Knight' is face-up on the field. 'Sasuke Samurai #4's' effect is Chain Link 1 and 'Neo-Spacian Grand Mole' is Chain Link 2. 'Doomcaliber Knight's' effect is chained and it will negate and destroy 'Neo-Spacian Grand Mole'. [Re: Exodia the Forbidden One] If both players have all 5 of the cards listed on 'Exodia the Forbidden One' in their hand at the same time such as if both players start with all 5 of the cards in their opening hand or if both players draw all 5 cards by the effect of 'Card Destruction' the game is declared a DRAW. [Re: Magical Thorn] If the opponent discards from their hand as a cost to activate a card like 'Cost Down' and you chain 'Magical Thorn' they will not take any damage. If your opponent activates a card where discarding is part of the effect of the card such as 'Card Destruction' and you chain 'Magical Thorn' they WILL take damage because the effect of 'Magical Thorn' will be active before the discarding effect resolves. [Re: Neko Mane King] When 'Neko Mane King' is sent to the Graveyard by the effect of 'Delinquent Duo' or 'Card Destruction' 'Neko Mane King''s effect is activated after those cards completely resolve all of their effects. [Re: Night Assailant] 'Night Assailant''s effect activates when sent to the Graveyard by 'Morphing Jar' or 'Card Destruction'. [Re: Null and Void] You can chain 'Null and Void' to a Continuous Spell or Trap Card that causes drawing such as 'Mirage of Nightmare' or 'Heart of the Underdog'. You cannot chain 'Null and Void' to 'Disturbance Strategy' 'Graceful Charity' 'Card Destruction' 'Morphing Jar' 'Mind Wipe' 'Dragged Down into the Grave' or 'Reload'. [Re: Peten the Dark Clown] If 'Peten the Dark Clown' is discarded because of 'Morphing Jar' or 'Card Destruction' the last thing that happened was that both players drew cards. So the effect of 'Peten' does not activate. [Re: Prohibition] If 'Thunder Dragon' 'Honest' or 'Kuriboh' is declared with 'Prohibition' it can be discarded with 'Card Destruction' but it cannot be discarded to activate its effect. [Re: Protector of the Sanctuary] Most cards that would cause the opponent to draw outside of the Draw Phase cannot be activated even by the controller of 'Protector of the Sanctuary'. However effects that are forcibly activated like 'Morphing Jar' can be activated (but results may vary see below). [Re: Protector of the Sanctuary] You cannot activate cards if they make your opponent draw such as 'Dragged Down Into the Grave' or 'Disturbance Strategy'. [Re: Regenerating Mummy] 'Regenerating Mummy''s effect will activate when sent to the Graveyard by the effect of 'Morphing Jar' or 'Card Destruction'. Passcode: 72892473 Set: Starter Deck Yugi Card Number: SDY-042 Rarity: Super Rare Attribute: Spell Card Text: You and your opponent discard your entire hands and draw the same number of cards from your respective Decks that you discarded. Card Type: Normal Spell Name: Card Destruction Edition: Unlimited