jgsugden
Legend
In 5E, invisible creatures are not hidden by default. Even though you're invisible, until you take the hide action, your location is obvious due to your sounds, tracks, etc... We don't all like the rule, but it is there.
What about invisible objects or spell effects? If a cup is made invisible, what needs to be done to detect the presence of it on a table? What does a creature need to do to detect an arcane eye or rope trick portal?
From what I can tell, you fall back to generic rules of setting a perception DC to perceive something that is hard to spot under the RAW - perhaps a DC of somewhere between 15 and 25. Is that how you'd handle the PCs attempting to detect an arcane eye, a rope trick portal, a scrying sensor or an invisibile object on a table?
What about invisible objects or spell effects? If a cup is made invisible, what needs to be done to detect the presence of it on a table? What does a creature need to do to detect an arcane eye or rope trick portal?
From what I can tell, you fall back to generic rules of setting a perception DC to perceive something that is hard to spot under the RAW - perhaps a DC of somewhere between 15 and 25. Is that how you'd handle the PCs attempting to detect an arcane eye, a rope trick portal, a scrying sensor or an invisibile object on a table?