Okay, I now agree that adjucating empower spell
strictly based on the core rules, modifiers are added to the result before multiplying. My assumption that the
magic missile example was simply incorrect came from my GM saying that empower spell was clarified in the 3.0 FAQ. Since I have no intentions of confirming or denying that statement and since others have stated on this thread that the FAQ did not clear it up, it's a bit presumtious of me to assume the example is mistaken.
For reasons stated above, I still feel that the multiplication should take place before adding on constant modifiers, but that would have to be a house rule.
Slightly off topic, going
strictly by the example, an empowered
magic missile with a caster level of 9+ maximizes at 35 damage rather than 37. The example essentially states (1d4+1)*1.5
per missile. This means that each missile is handled individually, and you potentially can lose a half-point of damage on each one.
Rebutting arguments made against my case....
Yes, improved toughness is better than toughness. Hence, the name includes
improved. This has nothing to do with my argument.
Yes, widen spell also takes a slot 3 levels higher, and there are many instances where a different metamagic feat or none at all would be better than using widen spell. Similarly, repeat spell from
Tome and Blood also takes a slot 3-levels higher. I'd certainly rather cast an extended
greater magic weapon compared to a repeated one. Again, this has nothing to do with my argument.
Instead, part of my argument was based on the fact that
both empower spell and maximize spell have the effect of increasing variable die rolls. Since maximize spell takes a slot 3-levels higher, empower takes a slot 2-levels higher,
and both feats have the effect of increasing variable die rolls, empower spell should never, on average, be more effective than maximize spell. I'm not arguing that all +3 level metamagic feats should always be better than all +2 level metamagic feats.
By the way Dr_Rictus, thank you for defending my math skills