[1.7.4] Agent of the Arena bug

[trungaczne]

This bug has been around for a long time. If you do enough damage to kill the first gladiator (the sling user) where it stands then it will also kill the other gladiators, completing the quest, even though they seemingly haven't spawned. Sometimes either of the other gladiator will spawn, or in the case screenshotted here the last gladiator spawns but is considered dead and doesn't act.