Card Rulings:Caius the Black Duke

TGC Rulings

 * No damage is inflicted if this card removes a Trap Monster or DARK Monster Token from play.

TCG Rulings

 * The second Normal Summon is treated the same as any other Normal Summon, so cards that may be activated in response to a Normal Summon may be activated now, such as "Torrential Tribute" or the effect of "Mysterious Puppeteer".
 * If the Gemini monster you have on the field is Level 5 or higher, you do NOT need to Tribute monsters again for this Normal Summon.
 * You can use your standard, once-per-turn, Normal Summon or a Normal Summon granted by a card’s effect, such as "Ultimate Offering".
 * When you Normal Summon a Gemini monster that you already have on the field, if it now has an Ignition Effect you can activate it at that time, just like other monsters that have Ignition Effects ("Exiled Force", etc.)
 * When a card’s effect refers to Gemini monsters (without quotes), it does NOT mean cards with "Gemini" in the card name, such as "Gemini Elf" or "Gemini Summoner".
 * Counters on the Gemini Monster Card will remain on it after you Normal Summon it again. Equip cards will also remain equipped.
 * The Gemini Monster Card remains on the field. It is not picked up or moved anywhere in this process.
 * Gemini Monsters are treated as Effect Monster Cards while in a player's hand or Deck.
 * "Pulling the Rug" cannot be used to negate the second Normal Summon of a Gemini Monster, since the effect cannot be chained.

OCG Rulings

 * Inflicting damage and removing the monster use the same chain link.
 * You do not inflict damage when you remove from play DARK Monster Tokens or Trap Monsters are removed from play. However, you do inflict damage when a DARK Monster (which is being treated as an Equip Spell Card) is removed from play.
 * This effect targets. Removing the monster and inflict damage are considered to occur simultaneously.
 * If you remove "Caius the Black Duke" with his own effect, you still inflict damage.
 * When the targeted card is face-down, the card is removed from play face-up. If it was a DARK monster, you inflict damage.
 * If "Imperial Iron Wall" is active, this effect activates and you target a card, but you do not remove the card from play.