The rules for this feature seem pretty clear to me. I guess it's up to the DM whether a creature without darkvision can "see" a dark unoccupied space, but I don't see how it makes a strong difference to a guy that can cast darkvision per short rest.
It's unclear to me how this feature could possibly be abused. Stepping through a keyhole into a darkened room seems like a totally legitimate use of the mystical shadow-arts to me. Shadow-stepping everywhere seems no less practical than skipping merrily through the dungeon. I guess if this were my player and they liked mashing that button I'd let them mash it.
It's unclear to me how this feature could possibly be abused. Stepping through a keyhole into a darkened room seems like a totally legitimate use of the mystical shadow-arts to me. Shadow-stepping everywhere seems no less practical than skipping merrily through the dungeon. I guess if this were my player and they liked mashing that button I'd let them mash it.