Gateway to the Another Dimension

Send 1 monster from your Deck / Extra Deck to your Graveyard and change the Level of all monsters on your field to the Level / Rank of the monster you have sent to the Graveyard. If you send a monster to your graveyard from your Deck, you can send 1 monster to your Graveyard from your hand. This Skill will only activate if you begin the Duel with a Deck that follows the conditions below. ● Your Deck / Extra Deck contains no monsters other than "Chronomaly" monsters or LIGHT "Number" monsters. ● Your Deck contains 12 or more "Chronomaly" monsters