1 Machine monster + 1 Pyro monster
If this card is Special Summoned: You can destroy all monsters your opponent controls with 1900 or less ATK. If this card is sent to the GY: You can target 1 monster your opponent controls with 1900 or less ATK; destroy that monster, and if you do, inflict damage to your opponent equal to its original ATK. You can only use each effect of "Blazing Bombardment Beast" once per turn.