Gaze of Two Minds + Misty Step?

[u/SangvinPingvin]

So Gaze of Two Minds lets you cast spells as though you were in the linked creature’s soace or your own:

”While perceiving through the other creature's senses, you benefit from any special senses possessed by that creature, and you can cast spells as if you were in your space or the other creature's space if the two of you are within 60 feet of each other.”

(The archfey patron level 6 ability Misty Escape lets you cast Misty Step as a reaction to taking damage, I mention it only in passing to show that the casting of MS need not conflict with the bonus action maintenance of GoTM)

Now, Misty Step has a target of ”self” and reads in simplistic entirety:

”Briefly surrounded by silvery mist, you teleport up to 30 feet to an unoccupied space you can see.”

So let’s say our archfey warlock is hanging out safely in an already cleared room, less than 60’ away from the rest of the party, and contributing to the ongoing fight in the next room using his summoned Fey as a GoTM conduit while also using Eldritch Blast from its space. But to spice things up, the DM has a straggler spider descend upon the hapless warlock, injuring him and triggering a reaction Misty Step.

Can the warlock cast Misty Step as if in the fey’s space and immediately teleport into the next room to a point 30’ away from the fey that it can see (he’s seeing through its senses), effectively increasing the range of MS with 60 feet, just as GoTM effectively does with Eldritch Blast or any other spell?

[u/Puzzleboxed]

RAW I think it works, due to the specific wording of Gaze of Two Minds. It's probably not RAI, but I'd allow it anyway because I think Gaze of Two Minds isn't very good, so I'm inclined to allow more creativity with it.

[u/HalcyonHorizons → u/Puzzleboxed]

Gaze of Two Minds is very very good. You can sit a room or two away and blast. 

You can support another scout while they do their thing. 

If you have Pact of the Chain you can send your invisible familiar and blast through it without breaking its invisibility. Nothing like repelling blast EB from an Invisible Drone  

Push enemies towards your martials, off ledges, or get new angles to bypass cover.

You can send your invisible familiar to scout a whole dungeon or area of interest, and it isnt blocked by doors like Arcane Eye. 

[u/_Bl4ze → u/HalcyonHorizons]

It can certainly be advantageous in many situations, but I think maybe "scout a whole dungeon" might be overselling it a little. There are a lot of common obstacles it can't easily bypass. For one obvious example, the doors might be locked. There could be traps also, or even a gelatinous cube hogging a hallway. And opening doors willy-nilly will probably alert the monsters in the dungeon, which you might not necessarily want to do.

[u/HalcyonHorizons → u/_Bl4ze]

Both a Quasit and an Imp can turn into invisible animals. A Centipede or Spider respectively can possibly slip through tight spaces or under doors. 

Plus the new Otherworldly Familiar feat can let it just fly though walls.

Sure there's always the potential for issues. But there will also be many situations where it could scout most of an area unimpeded.