However, you can also have the converse. Even in magical worlds, one blow from a sword, arrow or axe can fell even the mightiest. Bard taking out Smaug with a single arrow... the Death Star taken out by Luke's "one in a million" shot, and so on.
I didn't say otherwise.
Pre-3Ed, D&D had at least one mechanism to do that- the assassination tables- but those went away.
But surely we don't want nuclear armed casters in a mixed adventuring party where each character is run by an individual player. A person who is making a time commitment to playing the game.
1) in fairness, in the Darkness novels, magic of that scale was what we would term Ritual magic.
2) It's hard to use a nuke in a small space- see Pre-3Ed fireball or lightning slingers.
3) I never had an issue with it, on either side of the issue, so clearly, "we don't want" is non-universal.
It does exactly avoid wha I want it to avoid. No, it cannot fix the 15 minute adventuring day, but you cannot fix that entirely, since there can always be perfectly valid story reasons why there is only one single combat in the entire day - there may simply nothing more to kill around.
My main problem was your closing statement, the part I quoted.
The rest of that post? That doesn't bug me one bit, and I've been on both sides of that equation.
Ah, but that would imply you made spellcasting particularly strong so that the targets could be dealt with a few enchantment spells. That also indicates a mechanical reason.
No such mechanical reason is implied. When a legend or myth is told a certain way, the storyteller is not thinking in terms of "mechanics", just the story.
When elements from that story- and those like it- are used in game, the mechanics to support them are being created for the purpose of emulating the story. See Chaosium's original Stormbringer game, in which Melniboneans and Pan Tangians were the baddest spellcasters around, bar none- just like in the books- so the odds of you getting to play one were 1-3%. (If you think D&D PCs overshadow their warrior compatriots, give that game a shot.)
But let's say you have story reasons. Do you need the mechanics to force spellcaster dominace by default in case of a 15 minute adventuring day?Do you think that is how things have to be in every story or in a majority of stories that only involve a single fight in 24 hours?
The trick of playing a Vancian caster has always been- Pre-3Ed- having the
right spells for the job. A wizard who preps a bunch of cold spells may find himself using his crossbow more often than he'd like if he's facing foes resistant or immune to the effects of cold. In that case, where is his system-forced dominance?
If the caster is an Illusionist in a warren of Wights, where is his system-forced dominance?
Every PC's effectiveness is measured within the context of how the environment provided by the DM interacts with all the little decisions made by players (both meta- PC creation & advancement- and campaign).