There are some FATEs where mobs spawn outside of the FATE zone. They run into the FATE zone.

But these mobs can still be targeted by spells and ranged attacks.
This means that some players (Ranged), but not others (melee), inside the FATE zone can kill mobs before they reach the FATE zone.

This is problematic in the Youkai Watch event. I am trying to level some classes and do this event at the same time. The classes I am trying to level, do not have any ranged attacks in the early levels.

When I enter the FATE zone, there are many other people there who do have ranged attacks. They are able to kill all of the FATE monsters while standing inside the zone, before the monsters reach the zone. Melee without any ranged attacks (especially due to level sync) have no chance at getting any credit for these FATES.

Often, us melee cannot leave the FATE zone because we will lose level sync. We just stand on the edge, hoping one of two mobs can reach us before it is killed.

Is there any way to make mobs "Invulnerable" before they reach the FATE zone so everyone has an equal opportunity to get credit?