@DMW: Does that magic allow the emissary to cast 'Detect Evil Children'?
For the game I'm in at the moment, a friends character wanted to be an Emissary of the Lady of the Lake (London based game) and wanted sponsored magic, so I wrote this up for him with some rotes too.
Lady's Favour. [-4] (the title might need work)
This always counts as Channeling and Ritual together so you will be able to cast evocations and create thaumaturgic ritual with the theme 'Lady of the Lake', not only must the magic fit the theme but it must also align with the agenda of the sponsor i.e. you couldn't use it to hurt her or to doing anything against her nature.
As your magic is sponsored, once per roll you may invoke an aspect without spending a fate point. Doing this adds on to the debt between you and the Lady of the Lake. She may collect on this debt later, trading in compels on your for that debt on a one-for-one basis - compels that get you no fate points if you accept, and which you must accept unless you have a fate point to spend to refuse it. You can use the aspect to re-roll the dice, or add +2 to the control/attack roll just like you would any normal aspect. See YS289 for details on debt and agenda, as well as the ability to draw extra power at extra cost.
A Lady of the Lake theme could include:
Water - entropy, change, moats/rivers/barriers, memory loss (the styx/entropy)
Arthurian legend - chivalry, honour, justice, protection
And some sample spells
'This is not the droid you are looking for'
Type: Lady-of-the-lake'o'mancy
Power: Varies; 4 shifts assumes a discipline of 3.
Duration: One scene
Effect: Target has the 'Mind Fog' aspect applied to them.
Variations: Adjust the power as needed for higher discipline targets. Change the aspect for something more specific to the situation as long as it fits the sponsor.
'Go with the flow' perhaps?
Type: Thaumaturgy, Lady etc etc
Complexity: Varies according to the target difficulty (GM decides), usually somewhere from 2 to 8 (see YS298).
Duration: About one scene
Effect: Caster is led toward target.
Notes: This spell requires a symbolic link to the target. Blood or spit can be mixed with water. Hair can float on top etc. Whatever it is, it needs to be combined or focused through water, the element through which the Lady's magic works. (plus whatever hoops the GM thinks appropriate as well of course).
'Slippery when wet'
Type: Water Evocation, offensive manoeuvre
Power: Variable but 3 or 4 shifts, opposed by athletics (GM can rule otherwise in specific situations).
Effect: Weapon can't be used for one exchange
Variation: You can add an extra shift to make the aspect 'sticky' i.e. until they spend a fate point to get their weapon, it will continue to slide around. Or you can add two extra shifts for it to hit everyone in the zone.
'She is my shield'
Type: Water evocation, defensive block
Power: 4 shifts, 2 for armour and 2 for duration
Duration: 3 exchanges
Effect: 1 additional point of armour on top of whatever you're wearing.
'Water whip'
Type: Water evocation, offensive attack
Power: 4 shifts, all in power for a weapon:4 attack.
Duration: instant.
Variations: You can use 2 shifts to make it attack a whole zone
You're welcome to repurpose it for the Scottish Dragon.
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To add to this, just ask the player about the dragons nature.
What is it's main characteristic? Ferocious and proud? Cunning and deceitful? Wise observer? Trickster? Benevolent guardian?
How does it treat others? Is it good? Bad? Indifferent? Lonely for company? Jealous of humanity?
What is the emissary for? Company? A tool? A toy? An experiment?
Does it have an agenda? Greed? Revenge? Knowledge?
And then, how does it's power manifest?
Is it associated with a particular element or phenomenon? Is it a fire dragon? A weather dragon? A luck dragon?
For instance, a Scottish dragon might be very territorial. Perhaps it wants Scotland to rise to greatness and it's proud of the Scottish people. There could be an ancient pledge between man and dragon and the emissary might be part of it. The dragon might try to influence events so that Scotland takes it's rightful place as an international power.
The dragons power might be weather control and it believes that cold, wet weather encourages his people to be stoic, strong, direct and honest (he doesn't have to be right after all).
His magic may be weather themed (Winds, Storms, Fogs, Snow & Hail) and may also be used to incite honesty or encourage people to take action or be strong. Lying, complaining, indulging in unnecessary luxuries or doing anything that would hurt Scotland or help another nation, may anger the dragon.
How's that?