Just to expound on TWC training thing: there are two discrete DS bonuses and 1 variable way in which TWC training adds to your DS.
you get some amount per rank, depending on your stance, etc. It's pretty low for TWC.
at 1 rank you get a flat +5 bonus
if you are >= .5x trained, you get an additional +10 bonus (so +15 total)
That's why you pick up the 1 rank. Since the per DS rank contribution is quite low, and you don't need it for AS like with normal melee weapon TWC, it's an easy +5 DS.
Also no one mentioned this but as a pure you will easily be able to pickup ranks of Arcane Symbols on the cheap. Look for Brace (1214) and Dragonclaw (1209) scrolls. Brace will allow you to parry attacks when not holding weapons. Dragonclaw will give you a UAF bonus, as well as a roughly 1 in 6 chance to ignore all of the target's magical defense when you attack. They're both decently common in the treasure system.
Mithrilschlong, 2015-03-10 to slightly later on 2015-03-10. You will not be forgotten!
usable Meteor Swarm, late 2020-12-30 to early 2020-12-31. You will also not be forgotten!