Just like Alex said, the reason she said earlier was their trust that Alex would kill the Supreme Beast. They would wait together with all the other God Kings, praying so Alex would win.
The Supreme Beast gritted his teeth, never expecting Alex to create a disturbance of his already overwhelming Fire. Still, he should be able to fight him with this new power, so he thought no more.
With a smile on his face, Alex summoned another Fire Disturbance and integrated it with his Sun God Fire.
"Fire Authority!" Alex controlled the Sun God Fire Disturbance and turned it into a fox before shrinking into a tail and a pair of ears.
"You're too proud, Spirit God." The Supreme Beast snorted while feeling heavier pressure than what he felt this whole time due to Alex's Pure Fire. It turned out the Sun God Fire Disturbance improved the suppression as well.