This guide will tell you how to get a Requiem Arrow in Roblox Your Bizarre Adventure game. You will also learn what prestige level is needed for this.
1. You need to be at prestige 3 because if you are at prestige 2 or 1, you will be weaker than prestige 3 players.
If you prestige again. You will need to win the steel ball run again. 
To prestige, you need to be at max level of each prestige. 
The max level of Prestige 0 is 35 and that of Prestige 1 is 40. The max level of Prestige 2 is 45 and that of Prestige 3 is 50.
You will need to talk to this NPC, and pay him %5000 per 1 prestige. 
And your level will be reset, that means you will lost your progress. 
After you got prestige 3.
2. Win a steel ball run -can be any mode-
After you win, you have to talk to this NPC. Pay him $7500 and a mysterious arrow. 
For a requiem arrow, you can buy it anytime any amount.