And where is this alleged list? I've checked the SRD repeatedly. If you are referring to the tables of potential enchantments for ranged vs melee weapons - Vampiric Touch is on the list for melee, but not on the list for ranged. Or is there a different list you are referring to?
It's the list in each special ability. For example:
This enchantment can only be placed on a melee weapon.
Is listed under the
throwing enhancement - indicating that it has the restriction that it can only be placed on a melee weapon. But if you go up a couple of entries to the
spell storing enhancement it doesn't say that. Which means the place where the restriction would be if it had it is empty.
So either:
1> It was misprinted to not have that restriction in two editions, and they never published errata for that misprint in what is now nearly four years.
or
2> Spell Storing never had that restriction in the first place.
As to the list: Keen is
also not on the ranged weapon list - and appears frequently in source books as an enchantment on bows and/or arrows. The list doesn't mean jack-all.
So you are 'weilding'a weapon even after you throw it? Coooool!
Until the end of the action. D&D uses "use" and "wield" interchangably - often within the same sentences. So if you you have Weapon Focus or Weapon Specialization with a dagger - the bonus applies
even after you've thrown it.
Or to put it another way, let's look at the PHB on page 113 under the rules for thrown weapons:
Thrown Weapons: Daggers, clubs, shortspears, spears, darts, javelins, throwing axes, light hammers, tridents, shuriken, and nets are thrown weapons. The wielder applies his or her Strength modifier to damage dealt by her thrown weapons
So what
exactly is your rules claim that you are not
wielding a thrown weapon, given the fact that you are explicitly the
wielder of a thrown weapon when calculating damage?
Stop wasting time: put up an explicit rule that says you can't use vampiric touch with a spellstoring thrown dagger or just shut up and go away. So far everything you've said counter to this plan has not come from the rules but from your pants.
This is a rules forum - where we discuss rules. You may not
like the rules - in which case you can go away and complain about them on the house rules forum.
Without house rules:
* You explicitly "wield" weapons which you have thrown.
* Spell Storing weapons require you to "wield" the weapon and do not require that you "touch" the weapon.
This part of the discussion is over, unless you have some more crazy you want to add to it.
Of course, since you're still weilding a weapon even after you throw it, that means that if you want to throw a weapon, you'd better have two-weapon fighting, because otherwise you'll be taking penalties until you retrieve it and either sheathe it or drop it (because then you're not weilding it anymore).
Only if you want to get more attacks than your BAB would allow from using a weapon in each hand. If you throw a dagger, quick-draw another dagger and throw it, and then quickdraw another dagger and throw it - you suffer no TWF penalties. If, OTOH, you throw a dagger with each hand, then quickdraw a dagger and throw it, and then quickdraw another dagger and throw it to - you'd better have TWF.
TWF only gives you penalties if you attempt to use the same BAB for attacks with two different weapons. If you simply use another weapon with your normal iterative attacks - you get no penalties.
-Frank