Hey! So, I think the only problem I see is — it's not the spell itself, it's the extent to which characters might ICly want to revert to this kind of system, moving forward, for safety reasons. Then it would be harder to justify the use of a network-type system on an OOC-level, which might erode one of our game platforms.

So let's do this:

Yes, it can happen, but only two linked items at a time

It can't be as reliable as the other communication devices / the connection "breaks"

Don't launch it for a few weeks, please — Fox just had his magical system epiphany, and let's give the little guy a few days to enjoy it!