S-Rank mobs needs a invulnerability buff on S-RANKs

[Xaphire]

They're not designed for every player in the logical data centre to get to. You don't need to get to every S rank, there will always be more in the future. It's not a limited resource.
Even if it needs to be actively spawned by players, it's still an open world mob and subject to someone engaging with it at any time.

I honestly would prefer A/S rank hunts to work more like NMs in FFXI. Someone finds it, puts an alliance together at maximum for S ranks, a full party for As, and engages the monster. Add real mechanics, and other players outside of the alliance can't engage it - but you still hangout and watch to see if the people that got claim wipe.

I don't really care for the giant zerg fest A and S ranks are, and waiting more than a minute or two for ARR/HW S ranks is nonsense. Sitting around waiting for the entire data center to show up for something that dies in less than 10 seconds is deranged.