That image you're using is one I created for the Unofficial White Wolf Wiki. I founded the Wiki, work for the current publishers of Mage, and 2001's Guide to the Traditions was my first RPG credit. I've been steeped in Mage lore for a very long time.
Earlier books use "Horizon" a little liberally and inconsistently. I'm pretty sure it wasn't until Revised ...
As is detailed in the 20th anniversary edition of Werewolf: the Apocalypse, most sentient beings (barring Awakened mages) aren't visible in the Umbra. (p.313) Vampires are particularly hard to see, as they have "less of a spiritual presence than most." When peeking into the real world from the Umbra, it takes five successes to do ...
Cainites can project their souls to the near Umbra with Auspex 5. The power description (V20 pg 138-139) even says they would be able to travel further into the spirit worlds, where they could encounter spirits, werewolves or mages. This always spiritually.
I'm pretty sure cainites can travel to the Dark Umbra via Necromancy.
It's the Deep Umbra what's ...
Question 1: Can a Virtual Adept create a virtual sanctum?
Sure. That's carving out a spirit realm, which is Spirit •••••, Forge Ephemera. Doing so lets you make a pocket of digital space that remains permanently and is accessible to you. It's possible you might want to have someone else make it for you, if you're a new mage, or find an abandoned one.
Page 309 of the Corebook.
System: To step sideways, a werewolf needs to meditate
on a highly reflective surface, such as a clear pool of
water or a mirror. When a character attempts this, roll
that character’s Gnosis; the difficulty is the strength of
the local Gauntlet. The Gauntlet is strongest near certain
types of environments; every place on Earth has ...
The cost is one Gnosis point per object dedicated, and a character may never have more objects bound to himself than his Gnosis score. Conceptually linked groups of objects may count as a single object as the Storyteller's discretion. For example, as a set of clothing would be considered one object rather than one shirt, one pair of pants, two socks, ...
In Mage, it's usually the lead spellcaster who chooses.
As the person who's crafting the effect, or leading the ritual to cast the spell, the mage who's initiating (i.e., the one who's rolling) is whose paradigm determines where the group ends up. They're the ones who are casting the spell, so it's their will that determines where they end up.
Ok, let's try to explain this through layers.
First, you've got the lands of the body, matter, living or skin. That is Earth, three dimensions, four cardinal points, that stuff. Easy to understand since it is where most characters live and is based on where we live.
Then, because of some cosmic problem never fully explained, the spirit world got divided a ...
This only applies to the 20th anniversary rules but there are a couple of points there that would pretty much prevent conclusion 4.
From M20, p469-470:
As rough guidelines, however, the Storyteller can assume that most
forms of magick (in the Digital Web) are coincidental, with the following exceptions:
Effects or gates that jump between ...
In Werewolf Storytellers Handbook Revised, there are crossover rules with many supernatural races. They state that a Werewolf peeking from the Umbra see a vampire in her true form, not as she wants to be seen. I fail to understand why is that, and I don't know if it refers only to the Mask of 1000 faces.
That rules comes from Werewolf: the Dark Ages (not to ...
Lasombra have a power that may indeed come from the abyss, but it has no effect on any other plane, if for no other reason than Masquerade does not concern itself with other planes (and other planes are generally hostile to vampires). The werewolf has simply fair-escaped the Lasombra attack.
What would the puppy see?
They would see whatever ...
Agree with what has been said about Auspex 5/Psychic Projection - Technically you could end up anywhere in Psychic form given Luck and Time.
Umbra is a loosely defined term in the World of Darkness. As a Vampire Player, I gather that Mage Players see the Umbra as including the Underworld, but the Vampire rules treat them as separate things. YMMV/Expect ...
Are there any sensory cues (within the Umbra)?
There's a whole section on peeking from the Umbra to the Earth and vice versa, see p313 of the 20th anniversary rules:
A Garou in the Penumbra can peer back into the physical world,
but it’s not easy, and it’s not without risk. (This requires a Gnosis
roll against a difficulty equal to the ...
I'm not very familiar with the mechanics of Wraith: The Oblivion, but this forum post shares this information:
Page 58 of The Sea of Shadows:
"If all or most of the damage was normal (i.e., not aggravated), the
above holds true. If a wraith loses all her corpus due to aggravated
damage, there is no Harrowing; the wraith is dead forever. ...