Soul Dew max stacks is too high

[zizibaloob]

Soul Dew currently has a max held item count of 10. Because it is additive with the existing +/- 0.1 from the pokemon's nature, this means that at 10 stacks the pokemon gets +110% to the beneficial stat but only -100% (then rounded up to 1) to the sacrificial stat.

With a max held item count of 9, they would both be +/- 100%.

[bennybroseph]

Logistically, there's less issue with giving the player a free +10% stat boost rather than:

• Reducing the stack size to a non-even number
  or
• Making each stack worth 9%

I don't see any reason to do either of these at the moment. The +10% for free seems fine.