Board Thread:The Quarters - Q & A/@comment-49.145.112.212-20160411095750/@comment-27645494-20160411141439

Congrats on reaching level 10! Unfortunately, you can only purchase class-specific equipment for your current class. For more information on the effects of choosing a class/changing classes, see Class System.

To get the remaining items in the Mighty Mouse set, you can change your class back to warrior for 3 gems. Alternatively, if you're willing to wait until next year's Spring Fling, you can buy the Mighty Mouse items for gems without changing classes.