Woo, shiny.
Better make ourselves useful then :P (although I can't select and copy fragments of spell descriptions so it makes it a bit tricky).
Arcing weapon:
Might be overpickiness on my part, might be a potential problem, you decide:
Is:
"The weapon now deals an additional 1d6 points of electricity damage +1 for every two caster levels."
Possible problem: unclarity as to type of bonus damage and it's amount. Is the whole 1d6+1 or only +1 multiplied; is the +x damage dealt by electricity or generic magic enhancement?
Easy fix:
"The weapon now deals an additional 1d6[,] +1 for every two caster levels (eg. 1d6 + 3 on 6th level) points of electricity damage"
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Assasin's Bane - dunno, seems a tad strong for paladin, but then again, there's bull strength, owls popsicle and shield other, so I guess it'll be rather a NPC's spell.
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Bestial healing - um, could be renamed to MindFrier, or directly to Kill The Damn caster. Seems to be Extremely powerful, even though it has to pass the SR.
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Breath of Caliostra - I don't get it.
So he is dazed only for the first round, and if the total duration of spell is longer, he is not affected by this state longer. But what about the -2 penalty - is it stacking in the meantime (-2 on first, -4 on second, -6 on third etc) or is it flat -2 for X rounds? I think it's flat -2, but only because of how powerful it'd be, not because the description suggested it.
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Burning Boneyard - me likey, but it's another strong caster-killer. Then again what good is the supplement if there are no strong spells, eh? ;-)
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Caress of Caliostra - the name. If I'm to die of ecstasy, I'd rather not have people mishear that as carcase of caliostra. "You've heard about Reth Gif? Died of ecstasy with carcase of some Cali lass" "That dirty %$#^*."
What's wrong with stroke? It sure resonates better with spell description. And while the character is affected by SoD - there's an upside, he can have impure thoughts!
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Carriage - I suggest changing it from 4 to 5 people if the intent is to allow PC's to travel around. Typical family has 2.5 kids, typical gaming group 4.3 players. Those partial people add up somewhere ;-)
K, enough for now, time to read something useful :P But to quote the governor of California: I'll be back.