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 must also send 1 monster to your Graveyard from your hand. This Skill can only be used once per turn, if you begin the Duel with a Deck/Extra Deck that contains no monsters other than "Chronomaly" monsters or LIGHT "Number" monsters.