Darksiders Warmastered Edition - can't unlock chest in Drowned Pass

I just played the game till the end, and just noticed that there are 12 slots to enchancements and not 11 as the base game.

I also noticed a chest that probably needs to be triggered by some special interaction

(like the break all hydrants in the first area)

in Drowned pass, right next to the anvil with the

(Armageddon Blade piece)

, but have no idea what can trigger this chest.