Prolongation Charm

E/F/M:

This Casting will double either the base, normal Time of another of the caster's Castings, or else it will double the base, standard Area of Effect/ Force/Material of such a Casting. The caster must announce before casting which Effect the Prolongation Charm is meant to have. In addition to the base cost of this Casting, the caster must also expend an amount of Heka equal to the base cost of the Casting to be prolonged. A Special Success will triple the Time or Area. A Special Failure will cut the Time or Area in half.