Just to throw in some random suggestion popped in my mind today :

A mission that can only be accessed when you have a certain Oruas Vision active
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This can result to a new vision solely for the purpose of doing the mission(s), or new mission(s) paired with current visions.
The mission can be a repeatable daily, or only be repeated for limited times - if the reward is powerful.

i have a vision, its dan not being that tricky...

i think his plans are more linear, but not a bad idea