It's a Fusion Card

1 "Pendulum Dragon" monster
1 Warrior-Type monster

If this card would be Special Summoned, you can make the ATK of all other monsters currently on the field become 0 until the end of this turn, and this card gains 100 ATK for each monster whose ATK was reduced to 0 by this effect. Your opponent cannot negate their monsters' destruction by battle with this card.
ddd master
How subtle... everyone knows what this is, so don't even try to hide it.