Guild Wars 2

So I heard there are new stats like Viper’s and Commander’s , where can I get those ?

Not all of them have been found yet, but heres the ones im aware of.

Minstrel stats are from the Itzel Vendors in Verdant Brink
Viper’s stat are from the Exalted Vendors in Auric Basin
Trailblazer’s stats are a random drop from the Crystalized Caches in Tangled Depths
and Vigilant stats have been found, I just can’t remember where to find them.

The rest still haven’t been found, from what ive heard.

Commander stat is from the vendors present at a Dragon Stand victory.