Each Maho spell causes Taint at a rate of 1k1+(1k0 per Maho rank) rolled d5s, keeping one die, subtract 1 from the total.  5's explode.  This gives you the base taint of the spell.<br/><br/>Roll the Ring you used to cast the spell with a TN of 0.  For every successful Raise, subtract 1 from the result.  Raises must be declared prior to rolling.