Arrow of the Defeated? Arrow of the Loser?
Could it be that its effect is that only losers can shoot the arrow? Like earlier when Rosen won against those Seed believers in the Void, he belonged to the winners, so he received the arrow shot by the defeated?
Regarding everyone's conjectures, Isabel shook her head: "I don't know exactly why it's called Arrow of the Defeated, but it's definitely not what you are suggesting."
"I don't know much about the Arrow of the Defeated, but I know its power is immense, capable of even striking down a Legend."
Striking down a Legend?! There was a look of astonishment in everyone's eyes; it was their first time hearing that an attacking mysterious object could cause fatal damage directly to a Legendary Level Wizard!
No wonder the danger it brings is so horrifying.