Variable Maintenance

Ability Type: Optional Spell Enhancement
Related Skill: Spellcasting
Provided By: Advanced Casting

Your knowledge of spellcasting has deepened to the extent that you now understand how to create more flexible spells that can contain a variable amount of Power. When casting a Maintainable spell, you may add the Variable attribute to it (allowing you to alter the amount of Power invested in it on the fly) in return for increasing the Difficulty of the spell by 1.