Chimeratech Overdragon

"""Cyber Dragon"" + 1 or more Machine-Type monsters
This monster cannot be Special Summoned except by Fusion Summon. When this card is Fusion Summoned, send all other cards you control to the Graveyard. The original ATK and DEF of this card are each 800 x the number of Fusion Material Monsters used for its Fusion Summon. Each turn, this card can attack as many of your opponent's monsters as the number of Fusion Material Monsters used for its Fusion Summon."