Okay, the campaign we are playing has a RAW only rule. 0 house rules.
What a circle spell can or can't do. Please correct where needed.
Circle is a target : The spell affects everything within a ring drawn by the magus at the time of casting.
I read that as whatever you intend to effect needs to be in the circle at the time of casting.
So healing spells and other spells that normally have a ind target can be rewritten to effect larger groups in exchange for the longer and obvious casting.
Ring is a duration : The spell lasts until the target of the spell moves outside a ring drawn at the time of casting, or until the ring is physically broken.
Now for the multitude of questions.
Does the circle/ring effect a dome or a pillar? If I make a 1 pace circle and use a CrTe to make a pillar of dirt would it make a pillar as high as 10 cubic paces dirt? if I do the same thing with CrAq does it use a ponds worth of water to make the pillar (base is higher to make a pillar of water that would remain a pillar, I assume) This is all based on the base size in core.
Can a circle be mobile? : can I use it on a hoop and make it float (with another spell) and use it as a mobile ward?
Can you effect the object the is hosting the circle?
Can I engrave it on or around the head of a hammer and use : TALONS OF THE WINDS
To make a sudo enchanted hammer that only activates when it is swung i.e when wind passes over the circle?
Transforms a wind into an abrasive medium that tears and claws at everything in its path. Soft materials like leaves and cloth are shredded, and people take +5 damage from innumerable bloody cuts and abrasions. This spell will deal damage a breeze of some sort blowing over the circle (by swinging the hammer)
(Base 4, 0 Circle, +2 Ring)
I shall add spells for comment and for learning.
UNIVERSAL LAMP FUEL MuAq lvl 10
Base 2 R: Touch +1 D: Ring +2 T: Circle +0 Effect +1
Cast on a circle scribed into the bottom on a lamp it changes water within into very fine lamp oil.
Useful on ships where there is plenty of water available and should the lamp fall over and the liquid
leave the circle it reverts back to it's previous state.
THE FLURISHING FLOWER POT CrHe lvl 10
Base 1 R: Touch +1 D: Ring +2 T: Circle +0 Size +2 or Group +2
A circle to inscribed on the rim of a flower pot to ensure a large plant or a group of 10 grows healthily.
WARD OFF WINTER'S CHILL CrIg
Base 2 R: Touch +1 D: Ring +2 T: Part +2
Heats the surface within the circle of the object that is inscribed so that it is warm to the touch. (Heated floor tiles)
THE EFFEMERAL SONGBIRD CrImAn lvl 10
Base 2 R: Touch +1 D: Ring +2 T: ind +0 Req An +1
Conjures a illusory song bird within the ring engraved in the bottom of a birdcage, it sounds and acts like and actual bird.
No upkeep required
I anyone has non warding circle spells that I can examine to better understand these parameters I would be grateful.