I didn't have time to use my last week's Oracle offering. Today, I found that it was still in my inventory (thinking it would disappear after weekly reset) and went to use it at the Oracle. When I left, I noticed that the offering is still in my inventory. I used the offering about 4-5 times, and each time, Mara did her speech and then spawned a chest that gave loot and 3000xp every single time. One time I even got a curated roll class item. This is potentially game breaking, since it gives you a lot of experience for essentially nothing and it always gives you a (NOT powerful) legendary item. -Kota