Create Powerstone for Sorcery, Please Help

[Varyon]

Originally Posted by Kesendeja

I've upped no resistance to 300% and recalculated the costs' based on your input. Thanks BTW.

so for further levels, do you apply the cost for the affliction part? or is it just the Energy Reserve?

So, I think it would look something like this:

Level 1: Affliction (Advantage, Powerstone* +39%; Permanent Duration, Cannot be Dispelled +300%; No Resistance Roll +300%; Requires Skill Check -10%; Sorcery -15%; Touch Only -10%; Requires Valuable Gem -40%) [66.4]
Level 2: Affliction (Advantage, Powerstone* +39%; Advantage, Powerstone (Costs Fatigue -5%) +37%; Permanent Duration, Cannot be Dispelled +300%; No Resistance Roll +300%; Requires Skill Check -10%; Sorcery -15%; Touch Only -10%; Requires Valuable Gem -40%) [70.1]
Level 3: Affliction (Advantage, Powerstone* +39%; Advantage, Powerstone (Costs Fatigue -5%) +37%; Advantage, Powerstone (Costs Fatigue -5%) +37%; Permanent Duration, Cannot be Dispelled +300%; No Resistance Roll +300%; Requires Skill Check -10%; Sorcery -15%; Touch Only -10%; Requires Valuable Gem -40%) [73.8]
etc

That makes it [66.4] for level 1, and [+3.7] per additional level. The above construct, with Advantage, Powerstone* +39%; Advantage, Powerstone (Costs Fatigue -5%) +37%; Advantage, Powerstone (Costs Fatigue -5%) +37%; etc, basically says afflicting 1 ER is covered by the Sorcery Limitation, and each additional ER calls for +1 FP, using the rules for Limiting Enhancements (in this case, Limiting the "Advantage" Enhancement for Affliction).

*Powerstone: Magic Energy Reserve (Spells Only -20%; Affects Others +50%) [3.9]

EDIT: As an aside, note you can cut the cost down by [30] by getting rid of No Resistance Roll, and will probably be better off for it. Powerstone should probably count as a beneficial Affliction, in which case the target needs to pass an HT roll for it to work. Most quality gems probably have HT 10-12 (weaker ones probably have a lot of occlusions and the like, which is going to make them less valuable anyway), so at worst you're looking at a 50% failure rate. Being able to access the spell with a lower level of Sorcery, as well as saving [6] (as an Alternate Ability), are probably worth it for the small inconvenience of sometimes needing to cast the spell twice.