Ltheb Silverfrond
Explorer
I think, for the sake of simplicity, that a cost multiplier be used for now. X1.5 sounds good to me because the math comes out nice and even, and if included in Ascension, it would take less space to explain that then to institute a complex drawback system. (Or even to spell out guidelines) Perhaps in Grimoire an additional mechanic for artifact drawbacks be proposed, and that either system could be used interchangeably. Don't want a drawback? Pay through the nose in equivalent bonus. Want power, at bargain deals? Take a crazy drawback for the artifact, like 'only works on tuesday' 
