Dragons Boost Fusion

[REQUIREMENT]None [EFFECT] Fusion Summon by sending face-up Dragon Type monsters from your field to the Graveyard as material. Then, if you sent "Red Boot Boost Dragon" to the Graveyard by this effect, you can send the top 7 cards of your Deck to the Graveyard. Then, if you sent a card from the Deck to the Graveyard, you can send the top 7 cards of your opponent's Deck to the Graveyard.