Orb of undoing?

[ADarkRaccoon]

I playing with a friend who hadn't finished the story and we were playing together, however. . . I was able to buy Orbs of Undoing without even finishing the story mode/final boss. . . Anyone knows how that happened? I want to be able to buy Orbs now because going through the game without using Orbs it's kind of frustrating in higher difficulties

[Necanthrope]

Orbs become available after story completion. If the host has beaten the game any summoned players can buy them in the hosts world. Phantoms who have beaten the game can buy them in their world and sell them to Ace in the hosts world. This then allows a host and any other summons to buy the limited amount sold.

I've got over 900 hours played and 5 maxed characters. I've never used an orb so I think you might be overstating their usefulness. Play long enough and you'll max everything. It's generally fairly easy to spot those skills that provide a consistent benefit and those that are more niche. Stick to maxing out staples like health, stamina, spirit and gun DPS skills and you'll be fine.