Gigarays Gandora the Dragon of Destruction

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by sending 2 other monsters from your hand and/or field to the GY. Gains 300 ATK for each banished card. Once per turn: You can pay half your LP; apply 1 of these effects, depending on the number of "Gandora" monsters with different names in your GY.
● 1: Destroy all other cards on the field.
● 2: Banish all other cards on the field.
● 3+: Banish all other cards on the field and in the GYs.