Argent Peacemaker - Attack Speed Increase Low
Firotech Alchemer Mk II - Charge Time Reduction Medium
Hail Driver - Charge Time Reduction High
Sentenza - Damage Bonus vs Gremlin Very High

Don't really use any of these so figured I may as well get a price check and see if any of them are actually worth selling. On an irrelevent note I find it amusing how ordered alphabetically they go Low, Med, High, V.High