Kael can alter, destroy, or rewrite almost anything—but he cannot undo the consequences of choices he makes for himself.
Every time Kael uses his Absolute Authority to perform something that fundamentally violates reality—erasing a god, resurrecting someone, rewriting time, creating life, etc.—he loses a piece of his humanity.
Not his memories at first.
Something deeper.
His ability to feel.
First, he loses fear.
Then anger.
Then the ability to cry.
Eventually, love and attachment begin disappearing.
If he uses Absolute Authority too freely, he could eventually become an emotionless cosmic being who remembers loving people but can no longer understand what love means.
The terrifying part is that his power cannot restore what he loses.
That gives Kael a real dilemma:
He can save everyone. But every time he does, he risks becoming someone who no longer cares whether anyone lives.
This also creates a great long-term conflict. The strongest enemy doesn't necessarily need to defeat Kael—they can force him into situations where using his power costs him another piece of himself.
And there's one person who becomes especially important: someone Kael loves who realizes what's happening and eventually tells him:
"I don't need you to save the world if saving it means losing the person I'm trying to save."
That makes Kael's weakness emotional, permanent, and directly connected to his overwhelming power.