And this is where things go sideways -- it misses the thrust of what the OP was getting at. This doesn't even lose a spell level (@ lvl-20, that is) -- that was my point of contention with that example.
I don't even think the OP mentioned losing a spell level at level 20. Checking again, I can see he definitely didn't mention losing a spell level at any point. What he did say was "tossing out the spell slot progression at a few levels", which means a caster at level 10 casts as though they were level 10-X, where X is the number of levels that were tossed out. I picked X = 2 because it's a serious hit to the sorcerer that will probably make them feel bad for playing no matter where you put the 2 dead levels, but you could make that number bigger and the problems will get delayed to higher levels.
Yes, they essentially have what amounts to an at-will death effect -- that's how hard they're swinging their sword (more so for warblade; psywar simply has more versatility).
Uh, no. They have one ability (that they might pick up) which requires them to be adjacent to an enemy, use a full-round action to make a jump check, then make an attack roll, then let the opponent make a fortitude save based on the initiator's strength (no other stat), and then it doesn't even work against enemies immune to critical hits or death effects. At will be used
at best once per round. It is in almost all ways worse than
the ability our MT got 2 levels ago.A level sorc 4 / favored soul 4 / MT 9 can literally build a crude fortress, pierce almost all illusions, shut down most non-flying, non-ethereal mooks, or make fighting without FoM effectively impossible. And because he's got a gazillion slots he can drop one of his highest-level spells every round in most fights with room left over to solve every puzzle his party could even dream of dealing with.
Okay, so you've got some Batman going on; but 1) I think you're being a bit hyperbolic with your frequency, 2) nothing you've mentioned is inherently game-breaking.
I mean, seriously -- Move Earth is a nifty, imagination-dependent utility/BFC spell ... not a HUGE deal, and at that level, is not exactly a Gordian Knot. Also, if you haven't got FoM (or at least a serviceable substitution thereof) by level 17, you have failed at life -- just go home and cry yourself to sleep. That Wall of Iron? Yeah, that "death effect" I mentioned above also works for knocking that shit down, and in pretty short order.
1 more level on that build gives you 7th-level spells; which, at that level, there are plenty of defenses against .... though I will admit that this is where things are getting a bit dicey. The rails don't completely come off for 2 more levels when 8th-lvl spells come on line ... which is why my suggestion stops at spell level 7.
You can't handwave
move earth by saying "it's not game-breaking". A standard action single-target SoD isn't gamebreaking at this level of play, but our candidates here don't get that either. This terrible version of the MT controls the battlefield better, kills targets harder, and provides stronger defenses than any other tier 3 class. And it does that with only it's top 2 levels of spells.
And remember, this isn't about the MT fighting the warblade (in which the MT wouldn't waste iron walls because he's not a fool). This is about how much the MT contributes to the adventure/fight compared to the warblade. And the answer to that is: "Way the fuck more". And I'm glad you can see that 7th and 8th level spells really do leave tier 3 characters in the dust. Even though that sort of thing can happen with 4th level spells and a little creativity, I'm glad we can agree that the MT does not drop classes to tier 3 or tier 4 as I originally said.
Actually, it seems like that is what you're arguing. Just sayin'.
I recommend looking at the TLDR in my original response to this thread. My responses here are about how
clean the process will be. I'm not dumb enough to think that if you nerfed the wizard's casting by 18 levels he wouldn't be about as useful as a fighter or monk, but that has no bearing on whether or not the process would be considered "clean" because then it would also make wizard players feel awful and dumpster dive for abusive spells.
Bard casting on a wizard makes them worse than a sorcerer, but they can probably still outperform the beguiler. Bard casting on a druid makes them laugh because they're still miles beyond any tier 3 class.
I used it as the comparison because the beguiler is the strongest of the "tier 3" classes and indeed deserves a lot more credit than its given. But that wizard is still beating the beguiler.
I think you're getting caught up on the "Less levels, less powah" idea. It's simply untrue. 90% of a class's power comes from the spell
list. If the bard was given fullcaster gems it could go up a tier with certainty. A wizard's huge flexibility, powerhouse spell list, and enormous array of potential solutions
definitely makes them stronger than the beguiler until you do crazy things like force them down to ranger access. Now this change also makes wizards feel terrible because they'll probably suck even worse at lower levels, but in the long run their spells at 2/3 the beguiler's level can be used a hell of a lot better. This assertion of yours is actually what's untrue.
EDIT: Also, I'm talking specifically about the wizard and druid (though I think the cleric works too). If a sorcerer got nerfed to 2/3 casting, the best "tier 3" classes like beguiler and dread necro could probably beat him, but the bard and psywar would still look bad.