can unsent die ? SPOILERS

[Mikasa Ackerman]

im currently at the one scene in bevelle , and everytime im wondering if the gun would even harm auron , after all he is unsent , just like seymour , and seymour can get beaten up aswell without problems

[Hinnyuu]

Unsent can't die, because they are already dead. But they're not invincible. They can be harmed, and beaten down. What happens to them when they take a lot of damage is a bit unclear, but as Seymour has proven it seems that even dispersing them only appears to mean they need to rematerialize sometime later.

It can be assumed that unsent are primarily held together by their own willpower - they're refusing to come to rest on the Farplane, until they are forced there by a summoner's sending. However, they seem able to resist sending at least to some degree if they're at full power (which is why you need to beat down Seymour first before you can send him).

It shouldn't be any different for Auron.

[Casurin]

I agree with Hinnyuu there:
you certainly can "kill" them but that is more like beating them down so long till they no longer have the ability to remain in the realm of the living. It seems to be entirely their emotiosn and willpower that keep them here - either strong emotions like grief - or willpower like Auron and Seymore.

But at Bevelle - you just beat their huge mystical gaurdian-monster, stormed through those soldiers, beat up their huge flying magical canons - and now they stop cause of those punny little guns. Hillariously bad.