أَظْفَارُ الْمَنِيَّةِ
The claws of death.
First level: death is implicitly related to a predator through overpowering, seizing, and harming. This is the basis of the hidden comparison. Without that link, attributing claws would be arbitrary.
Second level: the imagined claws intensify the felt grip and terror of death. Their effectiveness depends on the first comparison; they make the relationship more vivid rather than create a separate, self-sufficient source of eloquence.
The figure's quality rests on both the basic resemblance and the supporting imaginative detail.