If I have tremorsense or blindsight, do I have line of sight if I'm otherwise blind?
In particular, would this allow me to teleport out of a
Blindsight notes that:
And teleportation, of course, explicitly requires line of sight.
The significant problem is that "line of sight" is never formally defined. I believe that line of sight is determined through these determining cover rules:
Thus, line of sight is any unbroken line running from a corner of the attacker's square to a corner of the defender's square. Stinking cloud blocks that, but both blindsight and tremorsense allow the penetration of "obscured" (through environmental effects like darkness).
The question to pose to the DM: does the stinking cloud magically jam vision modes or is the blocking of line of sight a function of the production of the Heavily obscured effect:
Answer: probably, but ask your DM based on the nature of obscurement that stinking cloud provides.
Yes, but quirkily, by RAW you can't teleport there.
The compendium entry for BlindDDI says
A blind creature relies on special senses, such as blindsight or tremorsense, to see within a specified range
Neither it, nor the blindsight and tremorsense entires mention line of sight specifically, but I think being able to "see" should grant line of sight.
However, both blindsight and tremorsense allow you to see "creatures or objects within a specified range" which doesn't seem to me to give you a valid teleport target, as to teleport you need line of sight to a square, and so you can't use blindsight or tremorsense to see a destination to teleport to.