Ange fished out an Abyss Ball that was truly terrifying; it had been charged with Dark Element for two whole months. Furthermore, it wasn't just a simple infusion; through repeated comparative experiments and ultimately, using the Holy Spirit Matrix, he extensively drained Dark Element from a vast area and channeled all of it into the ball.
Two months, a full two months, do you know how he spent those months? He filled it up while multitasking with his other pursuits.
Despite this, it still shocked Abyssal Big Mouth. At the time, it boasted about nearly matching its true form, but in reality, its true form couldn't achieve such efficiency.
As a Primordial God, Big Mouth's "Origin" lies in devouring; as a Primordial God, its avatar had to borrow the power of darkness, precisely because its Origin lacks combat prowess.