Examples:
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Regular maneuver and defense:
I use fists to try to throw sand in your eyes.
I get a total result of 4.
You try to avoid the sand with athletics.
If you get a total result of 5 or better, you've avoided the sand completely.
If you get a result of 4 exactly, the aspect is fragile.
It can only be tagged once, and then will go away right after it's tagged the first time.
Or, you can use an action (non-rolled? supplemental?) to remove it.
If you get a result of 3 or less, the aspect is sticky
The aspect will stay for the whole scene, and can be tagged once, and then invoked by others.
You can use an action (supplemental?) to remove it, with the difficulty being based on the original roll to place the aspect (or should it just be difficulty 3?)
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I throw a flash-bang grenade among a group of my foes. The grenade effects one whole zone with power 4, is probably resisted by alertness, and inflicts something like blind and deaf or stunned.
(I assume I roll throwing to avoid screwing things up, but as I don't have to actually hit anyone with the grenade, it's not too hard)
Everyone in the zone has to resist a power 4 maneuver (with alertness), the result being fragile or sticky aspects (as above).
Note that multiple people can all be effected by this aspect, and each one can be tagged separately.
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I use a spirit evocation to mimic the flash bang grenade, but I add an extra turn of duration:
power 4, duration 2, zone 1 (total spell power 7).
I then make a control roll difficulty 7, and may have to take backlash to get the spell off at full power.
Everyone in the zone resists a power 4 effect (presumably with alertness).
The only difference between the spell effect and the flash bang grenade is that the people who get the stunned aspect from it can do their own maneuver to try to remove the aspect until the duration of the spell has expired. After that, the aspects can be removed as normal.
Note that fragile aspects with extended duration still go away when they are tagged for the first time.
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Certain powerful but non-magical 'maneuver weapons' should probably also have added duration as well. Things like water cannon and so on.