spells to use with Intangible Tunnel?

My saga has not used the ReVi Gen spell Intangible Tunnel before, so I would appreciate some advice.

How does one see through an Intangible Tunnel?
The plan is to create an enchanted device that produces the Intagible Tunnel when an arcane Connection is attached, in this case a bird feather. Then use Command the Harnessed Beast through the Intangible Tunnel. But what is the best way to know what the bird is doing?

Note that it's not clear that a magus can cast spells through an Intangible Tunnel created by an item -- one might argue that only effects produced by the item itself can use the Tunnel.

That said, I'd use the Base 10 InAn guideline "Read an animal's surface thoughts" to perceive what it perceives; this can probably be combined with Command the Harnessed Beast into a single effect by adding to it an Intellego requisite and thus a magnitude.

It didn't occur to me about the difference between item and owner in the case of Intangible Tunnel.
But then again, the item is the Magus' talisman.
I must think about this.

Thank you

To "see" through an Intangible Tunnel you must use an additional spell effect. That might be an effect to read the animal's mind, or to perceive what is around it.

I would rule that OtIT can be designed in a magical item for either dedicated use by the item only (ie. powers that are in the item can utilise the tunnel), or the OtIT effect can also be used by the person activating the item. The difference I would stipulate is that the effect is designed for one or the other, not both.

A quick question though - If you are creating a specialised magic device as you described, are you better having two effects cast at Range: Arc, rather than a third effect which is used by the other two? I know it adds levels to extend two effects to Range:Arc, but your OtIT spell must also be of equal level to the spells cast through it. The item either needs to have a multi-use capacity for OtIT which equals the combined uses of the other spells, or be of very high level.

And if you incorporate what Ezzelino suggested, you create an item with a single high level effect, rather than an item with three effects. That makes it cheap too for effect penetration and uses/day, etc.

Just a thought.

It is going to take 6 or 7 seasons to implement the Intangible Tunnel effect in the Talisman with the current Arts scores. Learning the spell Commanding the Harnessed Beast modified to arcane range is probably not even possible with the current Art scores.

What I did was take Summoning the Distant Image (L25 spell) and dropped it three levels to bring it to touch range. I have been wondering if that spell really works if the intangible Tunnel does not end up in a room. On the other hand, I sort of got the impression that Summoning the Distant Image worked even if the item which the Arcane Connection is for is outside, so I am not worrying about it.

For the other direction, I used Phantasm of the Talking Head.

Yeah, strictly speaking if a Room effect like this is cast and there is no Room to affect, then it doesn't work.

Which annoys me to no end...Theoretically! I have yet to actually be hindered by this in a game though. But the same goes for Winds of Mundane Silence - no Hermetic magi will apparently dispell groups of unidentified spells while outside...They'll have to use several versions Unravelling the Fabric of...multiple times - but that spell is more efficient anyway.

Your game clearly needs more Bjornaer running around in the forest with no pants on!

Of course the player characters can always invent more flexible versions. The spells in the RAW are only example spells; they are not necessarily the best spells.

Funny! The old, long running 4th ed saga had a Bjornaer. The previous saga set in Denmark has a Bjornaer. The current Constantinople saga has a Bjornaer AND a magus using MuCo(An) to run around as a gorilla (which explains my posting a month or more ago asking for stats), octopus, and some kind of bird. I don't think our current Rhine saga has any such.
To quote Hoomer SImpson after dreaming he was Yogi Bear: "I had a lovely dream. I was wearing a hat and a tie and had no pants on!"

Well...yes. Except Summoning the Distant Image, what Target should that be then? No Target parameter is usable for an undefined part, perhaps Individual for the image you see, or Part because it is a limited part of the great outdoors.
Winds of Mundane Silence could work as T:Group, otherwise it does not affect more than one effect.
it is up to the Troupe I think. If I want a spell from the book but with other parameters, the lab text may be rare or even non existent. But if the original spell is suboptimal in one way - like the examples given - it may be more likely.

Since the last flight of the phoenix was released as RAW we have been using that trick for non-room area of effect spells. Personal range spells with increased size modifiers. Hermetic magic is extremely bad at doing that kind of stuff, but it can still be pulled out.

Cheers,
Xavi

Funny! The old, long running 4th ed saga had a Bjornaer. The previous saga set in Denmark has a Bjornaer. The current Constantinople saga has a Bjornaer AND a magus using MuCo(An) to run around as a gorilla (which explains my posting a month or more ago asking for stats), octopus, and some kind of bird. I don't think our current Rhine saga has any such.
To quote Hoomer SImpson after dreaming he was Yogi Bear: "I had a lovely dream. I was wearing a hat and a tie and had no pants on!"

Well...yes. Except Summoning the Distant Image, what Target should that be then? No Target parameter is usable for an undefined part, perhaps Individual for the image you see, or Part because it is a limited part of the great outdoors.
Winds of Mundane Silence could work as T:Group, otherwise it does not affect more than one effect.
it is up to the Troupe I think. If I want a spell from the book but with other parameters, the lab text may be rare or even non existent. But if the original spell is suboptimal in one way - like the examples given - it may be more likely.

I still maintain that LFotP is not (as written) a legal spell, but rather a fluke, best used as an example of what lab experimentation can do.

As I see it, it is, but because the Target of the CrIg spell is an individual fire, which is made bigger through additionnal magnitudes, just like you could CrTe a bigger individual stone by adding magnitudes.
And that big fire is created at Personnal Range, just as it could be created at Voice range.

I doubt the same reasonning would work with PeVi, though.