So, TK's usage to throw a bunch of things. It looks like for regular melee weapons, this looks like just plain attacks, using BAB+Int instead of BAB+Dex or BAB+Str, and no +str on damage. But there's a note about arrows and bolts doing damage as a dagger. What about critical threat ranges or multipliers? What about other modifiers on attacks? For instance, if a bard is singing, do I get attack bonuses? Damage bonuses? It seems like I should, since I'm making attacks, but I'm not totall ysure.
So. What about siege weapons? Will a cannonball still do 6d6 damage, or does it degrade to just ~1d6 because it's just a heavy thing? I'd think probably the latter. But what about, say, bombs or alchemical fire in siege weapon sizes? That 30-pound bomb that does 6d6 damage in an area, it seems to me, is not relying on the force of the delivery mechanism, so if you wanted to spend the money, presumably you could launch 12 of those with TK at level 15 or higher. Which would be... 72d6 of bomb damage. In a 30' radius. That's not half bad for a 5th level spell.
There's also the awesome option: For a mere 22,500gp, you can fling 15 javelins of lightning at your enemies.
At a higher price per item, but with reuse: huge-sized mithril greataxes appear to probably do 4d6 damage, and weigh 24 pounds each, just under the weight limit. You could presumably enchant them.
