Skirmish II Augments are significantly more "Random" Than Skirmish Augments, so keep that in mind when purchasing these.
Augments won't always be the same general thing (DMG+, Stats here) with the Armor... Augments range widely on most pieces from Accuracy, Attack, Crit rate, or Dbl atk... to, on Mage pieces, M.acc, M.atk, Pet:acc/r.acc, Pet:Atk/r.atk, Pet:Mab, Enmity- So forth.
I.E You can burn through ALOT of these and not get remotely what you want... SE Designed these to be a bit harder to get your wanted Augments on... Just keep that in mind, Pay what you will.
These can only be used to augment the +1 skirmish gear after using a key item to transmute the standard gear to +1 as well as the Yorcia sets.
You can trade 5 Ghastly Stones of 1 tier to make 1 Verdigris Stone of the same tier. In other words SE made the higher tier heads more desirable even on basic skirmish content.
These sell "Very Fast" lets lower the price so they sell faster!? um no... people are going to buy them as they need them, why are people so ignorant of this fact? why screw over an entire server just to get your item sold 10 minutes sooner?
