How to Open Long-Lost Augari Treasure

Now, I know this is very late in the expansion, what with BeefAss about to drop (I'm copyrighting that by the way) but some people may still be trolling around Kokrun grabbing treasures.

Many times I have arrived at a treasure chest only to be told its locked and you need to be blessed by some Croatian Demigod or something to be able to open it. Grrr! The actual message being: "Will only open to one welding the power that echoes that of the Augari." (spelling mistakes included).

Now, the last time I researched it I didn't really understand what it was telling me, so I didn't bother looking any deeper into it, but now, after a little research on Wowhead, I get it.

You need to unlock the Matrix core and its 3 additional abilities.

There are several chests dotted around Argus that need one of the abilities to either reach or to open.

This one requires you to have the Shroud active, so head down to the Matrix Core at the bottom centre of the Vindicar and select Shroud of Arcane Echoes.

Other chests require you to use the Lightforged Warframe to smash through things or the Light's Judgement to blow things up.

There is a good run down of what you need for each one under the spoiler button in the comments of this Wowhead page.