A question and what I got

https://imgur.com/a/D3i5f

Seen in this imgur album are my three best bots so far in Japanese C21 and a fourth image I have a question about.

What the heck is that item?

I'm hoping to eventually get a Lancer, and if I spend some real time on the game gather up an actual supply of parts so that I can really customize these guys. But what I have access to right now doesn't do jack for me and can't really upgrade my Archer which seems to be the best weapon I have so far besides my Wolfguy.

Me99909 wrote:

https://imgur.com/a/D3i5f

Seen in this imgur album are my three best bots so far in Japanese C21 and a fourth image I have a question about.

What the heck is that item?

I'm hoping to eventually get a Lancer, and if I spend some real time on the game gather up an actual supply of parts so that I can really customize these guys. But what I have access to right now doesn't do jack for me and can't really upgrade my Archer which seems to be the best weapon I have so far besides my Wolfguy.

if you mean that item, that's proof of domination, each dungeon have their own proof of domination
which you will get upon defeating the boss
(butak dungeon requires the final floor to be clear to get it)
and its use? its for void dimension which is literally a boss rush dungeon, but harder
which needed almost all of proof of dominations from all current available dungeons.
but, vd provides materials to craft premium parts(and upgrade certain weapons) and even have the part asa reward when cleared.

Thanks ^^.

I could also use an English speaking guild if anyone has one going