Answer:
The desire to fight for power is an instinct.
Explanation: This is the answer because he is killing many things for not very good reasons. Therefore he is just killing for power.
The theme is the message that an author is trying to get his or her readers to understand. For example, in the Greek myth of Daedalus and Icarus, the theme was "don't be prideful". Because Icarus and Daedalus violated this by trying to act like the gods, they were punished: Icarus fell into the ocean and drowned.
I think this might help you figure out the theme, hope this helps
Answer: "everying good thing must come to a end."
Explanation: The word converge means comming to a point. in this case there is a lack of detail in your question but from what i can see it seems to be asking the meaning. This would be the correct awnser seeming that your character has risein and it now seems that he has come to his end point. But in this case it ended well as he overcame his antaginost.