Welcome to this comprehensive guide, Exile. In this walkthrough, we'll be delving into one of the most challenging encounters in Path of Exile as of the current 3.3 patch – the Uber Elder. This formidable fight not only involves Elder but also introduces Shaper, making it a chaotic and demanding battle.

Spawning Elder on the Atlas involves expanding his influence by completing or killing over 60% of monsters within Shaper-influenced maps. To spawn Uber Elder, you must surround Shaper's realm with Elder's influence by acquiring all memory fragments for Zana, including defeating Shaper for the final memory fragment, which provides the Elder Orb and you can buy them at MMOexp.

Once the prerequisites are met, and you've unlocked the door within the Templar Laboratory, you can have Shaper and Elder influence on Shaper Guardian Maps. To position Uber Elder optimally, complete Tier 15 or 16 Maps while Elder is on your Atlas, or use the Elder Orb on a low-tier map (e.g., Graveyard) to make it Tier 16. Completing this map will trigger Elder's spawn, setting the stage for Uber Elder.

It's essential to understand the mechanics of the encounter and prepare accordingly. You'll need a robust defense with at least 6500 effective life, physical and cold mitigations, and a fast movement skill. A well-thought-out offense involves having strong single-target damage, typically exceeding 750,000 sustained Shaper DPS.

The encounter unfolds in phases, alternating between Shaper and Elder. Both bosses have distinct movesets during their attackable and immune phases. Additionally, various arena events, such as Vortex Balls and Eldritch Tentacle Ads, add complexity to the fight.

During the battle, maintaining awareness, managing flasks wisely, and adapting to the unpredictable moves of Shaper and Elder are crucial. The guide emphasizes the importance of avoiding ground degeneration, focusing on the correct target, and making strategic decisions based on the bosses' immunity phases.

Detailed information about specific moves, damage types, and raw values is provided, allowing players to assess their builds and plan accordingly. It's recommended to use Path of Building to calculate actual damage against Shaper, considering various buffs and mitigations.

Upon defeating Uber Elder, players can expect powerful loot, including the coveted Watcher's Eye with potentially three random or related stats. 

In closing, this guide aims to provide a comprehensive understanding of the Uber Elder encounter, helping players overcome its challenges through practice and strategic gearing. Remember, persistence and preparation are key to mastering this formidable battle in Path of Exile. 

Every game has its currency system, while in Path Of Exile, POE currency is in the form of orbs, for example, Divine Orb is one of the most popular and demanding Path of Exile currency for sale, in-game. As a marketplace, MMOexp sellers are well known for offering the cheapest POE currency in the market, players can buy from these dedicated sellers.