Valaine

Valaine is an NPC residing on the second floor of the Champions' Guild. She is the owner of Valaine's Shop of Champions. While her shop restocks only Blue capes, Black full helms, Black platelegs, and adamant platebodies, her shop is technically a general store meaning it is possible to sell any item to her shop that you can sell to a general store but when you sell items to her you will recieve twice the price the general store pays for the item making her shop a good choice to sell to if it's not out of your way to go there and you have the required 33 quest points to enter the Champions' Guild.