Buster Dragon Gandora Giga Ray

Cannot be Regular summoned. Must be Especial Summoned (from your hand) by sending 2 other creatures to the Burial Ground. This card gains 3{x} Power for each exiled card. Once per turn: you can pay half your Life; You can apply this effect,depending on the number of "Gandora" creatures with different names in your Burial Ground.
● 1: Destroy all other cards on the field.
● 2: Exile all other cards on the field.
● 3 or more: Exile all other cards on the field and in the Burial Grounds.