Gravity Zero: When there are 5 or more Samurai cards in your battle zone, if you don't have 1 or more [Bolmeteus "Kensei" Dragon] in your battle zone you may summon this creature without cost.
When this creature attacks, you may destroy 1 of your opponent's creatures with 6000 power or less.
While this creature is in the battle zone, it also has the name "Bolmeteus Samurai Dragon".
Double Breaker