Obtain the Ring of Retribution Oblivion from the relevant in-game source or vendor that sells or drops it
Check the item’s exact acquisition method in the game’s current database, patch notes, or official item listing
If it is a drop, defeat the required enemy or complete the required activity until it appears
If it is a reward, finish the required quest, achievement, or event objective
If it is a purchase item, collect the required currency and buy it from the proper merchant
If it is crafted, gather the required materials and use the correct crafting station or recipe
Verify any level, faction, reputation, or progression requirements before attempting to get it