kitcik
Adventurer
Healing is cheap. If the Caster was a selfish prick, you better believe I'd have a potion or two of healing kept as well. Anyone in a party that had a Cleric or Druid that didn't heal would have some other way to heal besides them...if not, simply let those two classes be the fighter, step back and let them fight all the hordes until they have cast all their spells. If you don't like them, backstab them if you're a thief, assassinate them if your an assassin, or simply grapple and strangle them to death if you are a fighter or monk.
Ironic thought, sunder weapon. Does a casters mouth and hands count as weapons? If so, break their dang hands and mouth...or if you count a head and neck...break their neck...
Of course that's more the realm of Evil DM and roleplay rather than direct rules...
Flight?
I suppose the caster could cast a spell and fly away...and no longer be part fo the party...but then...what's the point...is the caster just playing a solo game with himself?
If he want's to engage the fighter...he better hope the fighter didn't have archery skills or I'd probably NOT want to spend my last spell on fly...better to have something a little better against bows and arrows if I were taking on someone who could have a high BAB, a high Strength, and lob missiles at me.
Now you've gone to the level of ridiculousness. OK, you saved your healing potion, which somehow heals you equal to a Heal spell. I guess I saved a few charges on my staff of <spell that defeats fighters>. The debate is on which class is "stronger" "more capable" (something like that), not on who has the better equipment. The fact that a caster that is almost spent can still have an "I win" button, while the fighter cannot - that is the point. You have said nothing to deny this basic fact, just prattled on about your meaningless equipment.
As far as flying, I fly above your archery range and shoot Shrunk boulders out of my pea shooter at you. Or anything else I feel like dropping from that range.