Circle Duration & Existing Spells

[EthanSteele]

@TimOB

Or, the column could be the height of the length of the circumference. 10 paces is at least 25 feet or as much as 50.

Height equal to the length of the circumference could work, it gets you 3.14 paces tall
for a 1 pace diameter circle, so ~3m tall, more than enough to fit an entire person in. Fulfils the requirement of "1 pace across covers a person"

@Samsaptaka

The version in your post had T: Ring, rather than T: Ind like Lamp... . That may change things a little, or drastically depending on the outcome of the ongoing conversation.

My opinion is that the T: Ring version would cause everything inside the circle to become a light source, and the species emitted by that area would flow outward without breaking the circle. If you wanted a very large circle, you'd need to add magnitudes for size. Others clearly disagree with me.

Ring isn't a target, it's a duration and you can't use Circle to Create Light so it would have to be Touch/Ring/Ind to create a light source, or Touch/Ring/Group to make many light sources.

Either way I believe the species would flow out of the ring and not count as the target leaving because the light source isn't leaving, just the species.

@dc444

Sure a ring duration light might light the room but it would be trying to bypass the requirement of vis to magically gain a lab virtue. Hence why I think it should either not be able to leave the circle or break the ring duration.

Is there a requirement of vis to magically gain a lab virtue? Page 122 of Covenants makes no mention of that, just that using non-Ritual spells either adds 1 to Warping or -1 to Safety and that they don't give a bonus when they are spells that use the same Arts as the lab total. Eg: CrIg to make heat and grant the Magical Heating virtue (which is free and is either Excessive or Superior at your leisure) wouldn't give the bonus to CrIg lab totals, but would give you the Health and Aesthetics bonus.

Pg 123 says "A good guiding principle is that anything involving the use of vis, [...] can grant such Lab Total bonuses" so the spending of Vis is only required for that CrIg thing to assist the CrIg lab total. Using CrIg to create Light and grant the Magical Lighting virtue (which boosts Imaginem) is totally fine without vis and you'd get the Aesthetic and Texts bonus, but also have -1 Safety or +1 Warping.