Okay, this is an odd idea I had, and I'm not sure how to do it.
Currently, if you want to cast a spell with metamagic applied, you cast the spell normally PLUS metamagic, for a total higher level spell.
But what if you wanted to cast a weaker version of the spell, in exchange for being able to apply metamagic to it "for free"? The spell would remain at the same level, with the metamagic feat applied, but it would be weaker. This way you could get more utility from your Widen/Enlarge/Extend/Still/Silence feats without wasting higher level slots, but your spells are less potent against stronger enemies.
Let's say I'm a 7th wizard. I want to cast a Widened fireball. But I can't, because I can't cast 6th level spells yet.
Instead, I prepare a Widened Fireball as a 3rd level spell But, because Widen would normally take up 3 levels higher, I subtract 3 from my caster level. So I get a 40ft spread that does 4d6 damage. I also subtract 3 from the DC, so it's 10+my int bonus.
The formula is as follows: For every level that a metamagic feat WOULD bump a spell up, you subtract that number from the DC and the Caster Level.
If that's not strong enough, how about subtracting the metamagic level number from every numerical aspect (thus, a Stilled Cause Fear spell would effect a creature of 5HD or less).
Currently, if you want to cast a spell with metamagic applied, you cast the spell normally PLUS metamagic, for a total higher level spell.
But what if you wanted to cast a weaker version of the spell, in exchange for being able to apply metamagic to it "for free"? The spell would remain at the same level, with the metamagic feat applied, but it would be weaker. This way you could get more utility from your Widen/Enlarge/Extend/Still/Silence feats without wasting higher level slots, but your spells are less potent against stronger enemies.
Let's say I'm a 7th wizard. I want to cast a Widened fireball. But I can't, because I can't cast 6th level spells yet.
Instead, I prepare a Widened Fireball as a 3rd level spell But, because Widen would normally take up 3 levels higher, I subtract 3 from my caster level. So I get a 40ft spread that does 4d6 damage. I also subtract 3 from the DC, so it's 10+my int bonus.
The formula is as follows: For every level that a metamagic feat WOULD bump a spell up, you subtract that number from the DC and the Caster Level.
If that's not strong enough, how about subtracting the metamagic level number from every numerical aspect (thus, a Stilled Cause Fear spell would effect a creature of 5HD or less).