astriemer said:
How could/would you impliment these feats -- as feats -- not just through combining spell lists?
Generally, I feel that any existing metamagic feat could work just as well in the EOM system. Basically, every +1 level would be the same as +2 MP. But within the rules, you must decide whether to apply metamagic feats when creating a signature spell. I think I might, however, include a feat in LA that lets you swap in metamagic feats without increasing spell time.
Subdual Substitution would be fine as a feat, as would 'Split Spell'.
Split Spell [Metamagic]
You may apply this feat to any spell that has a targeted numeric effect (such as damage, healing, bonuses, or penalties). Instead of affecting one target, it affects two, both of which must be within range. Each target receives half the numeric effect of the spell, round down. A spell modified by Split Spell does not change its MP cost.
The Purify Spell feat might work best as something like 'Good Specialist,' so that if you know enough Good spell lists, you could take this feat and automatically apply its benefit. Or it could work as a normal metamagic feat, increasing MP cost +2.
How would you handle the requirement for a prestige class that needed one of these feats (Elemental Savant from T&B for example)?
I really feel this is a minor problem. Just as long as the character fulfills a some requirement with a similar cost and feel, balance should be about the same. Maybe require the character to take Extra Spell List and choose a spell of a certain element. Of course, mixing core prestige classes with EOM spellcasting might get a
little tricky, especially for those core PrCs that hew closely to the arcane/divine divide.