DPS item you can use in ARENA

As all of you should know, the only items usable in arena are some types of food/drink and trinkets.

However, there is one engineering item that can be used to boost DPS.

[Goblin Dragon Gun, Mark II]

If you are rooted, for example, you could use this to do some dps. It isn't massive damage but it's better than nothing. It can also be used while moving.