I would personally go about doing this with the delayed effect advantage and possibly charges.
Well I would go for the power on the tower increasing the duration of the power protecting the tower so that it is persistant, and only needs to pay the end once when casting, and then on top of that, depending upon how you want the protections to work you can have a limitation that says "untill dispelledd" or "until activated."
Now if you wanted to have two powers active upon yourself at the same time, and one is a trigger effect. I would take the triggered power, add on delayed effect and charges. This way you can "prepare" your charges number of triggered castings in a day and you can prepare them before hand and not have them interfear with your currently active spells.
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timeasmymeasure
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Date: 2007-01-29 08:17 pm (UTC)Well I would go for the power on the tower increasing the duration of the power protecting the tower so that it is persistant, and only needs to pay the end once when casting, and then on top of that, depending upon how you want the protections to work you can have a limitation that says "untill dispelledd" or "until activated."
Now if you wanted to have two powers active upon yourself at the same time, and one is a trigger effect. I would take the triggered power, add on delayed effect and charges. This way you can "prepare" your charges number of triggered castings in a day and you can prepare them before hand and not have them interfear with your currently active spells.