If you've noticed a particular item missing from the Wizard101 bazaar you're not the only one! I was shopping for Tower of the Helephant supplies and was disappointed to find the only place you can get dispels now is at the archivist and they are full-cost or two pip dispels.
I think it's a good idea for PVP so cudos on that, but I wish you could use 1 pip dispels on cheating bosses. In any event if you have a second school amulet you may only have to sacrifice one power pip for a dispel of that same school type.
So if you have any 1 pip dispels in your treasures... save them for a rainy day.