Subdued Magic

Rank	Effect	Flavor
1	Spell Power-, Spell Success+	Your spells are a little easier to cast, but a little less powerful.
2	Spell Power--, Spell Success++	Your spells are easier to cast, but less powerful.
3	Spell Power---, Spell Success+++	Your spells are much easier to cast, but much less powerful.
Each level gives -20% (additively stacked, then multiplied) to raw spellpower and -2% (additive) to raw spell failure rate. Generally, the impact will be less than -20% power and -2% failure, respectively.
Bad mutation