Hi guys,
I was pre-genning a character as per the Advanced Aging rules to create a back story for a future character/scenario. The magus, Imperius, is a bonisagus who wanted to create a way to have a lab without a covenant. In Durenmar he found a description of a mental construct lab - which was ideal. The problem for him was that places with a good magical aura are fairly rare and someone always builds a covenant there.
He decided to invent a spell which would create a magical aura centered on a person, so that they could have a mental construct lab and use it anywhere.
I decided that this was a major breakthrough, a Cr(Re)Vi Ritual, so he spent time gaining the right number of build points. I rolled for every season and apart from his lab blowing up a few times, he gained the 45 points in about 61 seasons (15 years).
Should I have made such a thing Hermetic? What he ended up with has some major problems in it. It's not something that most magi would want to do. Though it would suit any loner lab-rat perfectly...
Imperius Regionne Cr (Re) Vi General spell
R: Personal, D: Momentary, T: Individual, Ritual
Create a magical aura centered around the targeted person. The base level is 15 for a level 1 aura centered on yourself. The aura increases in strength with each 2 magnitudes. The target incurs warping as with CrVi Guidelines. If the Rego Requisite is used, additional magnitudes may be added to reduce the effect of the aura on those around you – the aura acts as a continual magical spell which will give warping to people and items inside it.
Lvl 15 +1 aura
Lvl 20 +1 Aura with full border
Lvl 25 +2 aura
Lvl 30 +2 aura with +1 border
Lvl 35 +3 aura, +2 aura with full border
Lvl 40 + 3 aura with +2 border
Lvl 45 +4 aura, +3 aura with +1 border
Lvl 50 +4 aura with +3 border, +3 aura with full border
Lvl 55 +5 aura, +4 aura with +2 border
Lvl 60 +5 aura with +4 border, +4 aura with +1 border
Lvl 65 +6 aura, +5 aura with +3 border, +4 aura with full border
Lvl 70 +6 aura with +4 border, +5 aura with +1 border
Lvl 75 +7 aura, +6 aura with +3 border, +5 aura with +1 border
Lvl 80 +7 aura with +6 aura, +6 aura with +2 border, +5 aura with no border
Lvl 85 +8 aura, +7 aura with +5 aura, +6 aura with +1 border
Lvl 90 +8 aura, +7 aura with +4 aura, +6 aura with no border
Lvl 95 +9 aura, +6 aura with full border
Lvl 110 +7 aura with full border
Lvl 125 +8 aura with full border
Lvl 140 +9 aura with full border
So as you can see, you can get someone to give you a high aura, but it would send you into twilight. And unless you add in plenty of Rego magnitudes you will give EVERYTHING near you warping points. Not many magi would want to share a covenant with someone like this.
The other minor problem of the effect is that only personal range spells get the full aura - everything else is happening in the lower aura outside your body.
Creating a magical aura is not as simple as with most other spells, there is no clearly defined point where the aura disappears. The majority of the aura will be concentrated within the target of the spell, but there will be some leakage around the borders. The aura will drop in magnitudes as you progress further from the centre of the aura. A general guide is, the aura drops by 1 magnitude per multiple of aura strength.
So a lvl 5 aura be 4 for (5 * 1 ) = 5 feet
The level will drop to 3 for a further (5 * (2) ) = 10 feet
The level will drop to 2 for a further (5 * (3) ) = 15 feet
The level will drop to 1 for a further (5 * (4) ) = 20 feet
Of course, extra magnitudes may be added to control the rego effect – each extra rego magnitude raises or lowers the multiplier by 1. Each rego magnitude increases the finesse ease factor by 3. With (aura – 1) magnitudes of control, and a successful finesse roll, it is possible to have an aura which terminates at it’s boundaries, or floods an entire area.