Embarking on your journey through the treacherous lands of Wraeclast in Path of Exile, you're bound to encounter a myriad of intricate mechanics. One such enigma that might catch your eye is the presence of corrupted gems. Initially perplexing, these gems hold unique powers waiting to be unraveled. In this comprehensive guide, we'll delve into the depths of corrupted gems, exploring their origins, transformations, and the risks and rewards they entail.

Corrupted gems are not just randomly stumbled upon; they can either be found in your adventures or deliberately corrupted using a Vaal Orb. Identifying a corrupted gem is a breeze—simply hover over it, and if the word 'corrupted' blazes in bright red letters, you've got your hands on something special. Once a gem has been corrupted, it takes on a modifier that can enhance its quality and strength, making it more potent than its non-corrupted counterparts.

Crafting enthusiasts, take heed! Once a gem is corrupted, traditional crafting orbs won't further modify it, except for those specifically altering sockets and socket links.

Venturing into the realm of self-corruption requires the coveted Vaal Orb. These Path Of Exile orbs, obtained through monster slaying, container smashing, or as drops from Strongboxes, have the power to corrupt items, including gems. To initiate the transformation, right-click on the Vaal Orb and left-click on the target gem. Be prepared for various outcomes, each carrying its own set of risks and rewards:

No change, but the gem remains 'corrupted.'

+1 Gem Level

-1 Gem Level

+10% Quality (maxing at 23%)

-10% Quality

Transformation into the Vaal version of the skill

This process isn't without its risks, particularly if the gem's damage relies on its level. Choose wisely, for once corrupted, there's no turning back.

One enticing outcome of using a Vaal Orb is the creation of a Vaal version of the skill. These enhanced skills, exemplified by gems like Vaal Arc, pack more punch but come with a unique requirement—they need the 'fuel' of slain enemies before unleashing their might. While potent, their power comes at the cost of a strategic approach to accumulating the necessary 'fuel.'

Vaal Side Areas: Keep an eye out for these randomly appearing corrupted areas on maps, marked by a heart icon. Though optional, the rewards are enticing, with a 50% chance of discovering a Vaal skill gem after defeating the area's boss.

Altar of Corruption: Located in the Temple of Atzoatl within the Locus of Corruption incursion room, this altar allows the corruption of gems without a Vaal Orb. Placing a gem on the altar can result in two corrupted modifiers, socket color changes, or even destruction of the item.

Lapidary Lens in Doryani's Institute: Within the Temple of Atzoatl, in the Doryani's Institute incursion room, gems can be corrupted twice at the Lapidary Lens. However, the same outcome won't be applied both times.

Once a gem is corrupted, there's no going back. If you frequently use a particular gem, carefully weigh the risks. Many undertake the journey of corruption with the sole aim of enhancing a gem's quality. While a gem's quality typically caps at 20%, Vaal Orbs offer a chance to surpass this limit, albeit with the risk of quality loss.

In the relentless pursuit of power and mastery in Wraeclast, corrupted gems become valuable assets. As you progress, keep an eye out for Vaal Orbs and explore Vaal side areas to uncover the secrets hidden within corrupted gems. Balancing risks and rewards, the path of corruption can lead to unparalleled strength and prowess.

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