A metaphor is a description of something as though it were something else.

b. What does this reveal about Antony´s attitude toward the killers?

Pardon me, Julius! Here wast thou bay'd, brave hart;
Here didst thou fall; and here thy hunters stand,
Sign'd in thy spoil, and crimson'd in thy lethe.
O world, thou wast the forest to this hart;
And this, indeed, O world, the heart of thee.
How like a deer, strucken by many princes,

Dost thou here lie!