QUOTE (ntwi @ Apr 5 2011, 12:38 AM)

1. A mundane character with a spell sustained on them walks into a warded area.
The spell drops, but is the creator of the ward aware that something happened?
The creator automatically knows if the ward is attacked in astral combat, including pressing through barriers.
Note that MitS p83 implies that astral barriers can exert some level of force on physical objects; the example explicitly invokes a sprinting character to provide conditions sufficient to cause pressing-through. The canon interpretation is probably that, at walking speed and not impelled by a vehicle or something similar, the mundane character bumps into the ward.
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2.A. A mundane guard has the spirit power of "Confusion" used upon him. He then wanders into the warded area.
The spell drops, is the creator of the ward aware that something happened?
The spell does not drop, there's no spell. Wards clearly affect critter powers when targeting, but it's not clear how sustained powers and astral barriers interact. Presumably the answer is either that the power is unaffected and the creator is not alerted, or that it's resolved the same as for a sustained spell.
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2.B. A watcher spirit has the spirit power of "Confusion" used on it. He then wanders into the ward.
Does it just sort of bump into the ward? If it was previously synchronized with the ward does it go through the ward and the power drop? Is the creator of the ward aware that something happened?
If the Watcher is not synchronized, it doesn't have a physical component causing it to press through the ward, and it isn't making an attack against the ward, so the reasonable conclusion is that it just bumps into the ward. It's not clear what happens when the watcher spirit is synchronized, but given the momentum requirements for pressing through I'd say it either doesn't happen in this case (watcher still bounces off) or that it only happens if the Watcher was traveling at Astral Fast Movement.
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3. Karl the Kombatmage notices a ward encompassing the building in front of him. He drops his sustained spells and walks through the ward. He then recasts "Improved Invisibility" on the inside of the ward.
Is the creator of the ward aware of this? Are they aware of the astral area surrounded by the ward or only the ward line itself?
Nope. Wards are surfaces, not volumes.
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4. Karl is a high level initiate with Masking. He can sleaze himself past the ward according to MitS pg 88. Can he synchronize the auras of active spells he cast on himself to get past a ward? Can he synchronize the aura of a spell he cast on someone else to get it through the ward?
For example, he can get through the ward alone with no problem, can he get through the ward while sustaining "physical mask" on himself? Can he cast "physical mask" on his mundane buddy and have him walk through the ward without losing the spell?
Per MitS p76, Karl can synchronize the auras of active spells or foci with total Force equal to his Initiate Grade plus successes on a Deliberate Masking attempt. This only applies to spells or foci on his person, so the someone else is out of luck.
~J