Salvation's Edge Secret Chest Solo Guide from 3rd Encounter

Look for Luckbot9 on Twitch for Checkpoint.

No out-of-bounds required.

Messed up at the start by missing the door by a fraction of a second, then goofed up on the elevator a couple of times, but you get the picture.

Just bring an Eager Edge sword and any Aggressive Frame sword (Aggressive Ergo would be best, saves switching from Half-Truths to Crownsplitter and losing ammo, as you need ammo in your Eager Edge sword to bypass the insta-kill zone right before the chest). and a grapple for that one high jump.

Ez 15 spoils weekly that you can combine with Vow for an ez total of 30 spoils a week without any out-of-bounds.
Can also be used to farm raid drops once you've got loot from finishing an encounter, otherwise it just gives spoils if you've never finished any of the encounters.