Cursed Fire King Doom Burst

“If this card is destroyed by battle or card effect and sent to the GY: You can target 1 face-up monster your opponent controls; it loses 400 ATK until the end of this turn. You can only use each of the following effects of "Cursed Fire King Doom Burst" once per turn. If you control a Fiend Tuner: You can Special Summon this card from your hand. If this card is Special Summoned: You can target 1 face-up monster your opponent controls; it loses 600 ATK until the end of this turn.”