# Trial of Chaos The Trial of Chaos also extends into endgame. As you gain Inscribed Ultimatums of higher and higher levels, The number of chambers that you can go through increases. In true Vaal style, this allows you to take even more risks for even more rewards. At endgame, you can progress through up to ten chambers with three bosses in a single run. Stacking ten tribulations on top of each other will make this a significant challenge, but it's worth it. ##### Vaal Orb The Trialmaster will tempt you with items from the Vaal Empire, such as Vaal Orbs. Vaal Orbs are powerful crafting items that corrupt your gear with random, mysterious outcomes. Corruption prevents an item from being modified further, so it has to be the last step of your craft. But it's also the most dangerous one. For example, if you use one on your body armor, it might add a powerful new enchantment, or it might just reroll the entire item, bricking it completely. Vaal Orbs also have the ability to add a socket, allowing you to bypass the normal restriction of how many sockets an item can have. A body armor could get up to three sockets this way, allowing for a significant number of mods. Vaal Orbs can even modify uniques, adding enchantments or sockets to uniques can make them incredibly powerful, but there's a good chance you'll break them as well. ##### Soul Cores The Trialmaster will also occasionally offer you Soul Cores. Originally formed by Chaos, the Vaal sought to replicate Soul Cores through human sacrifice rituals and blood magic to power their civilization. Soul Cores are powerful socketable items with mods that cannot be obtained from regular runes. Like all endgame content, there is of course a pinnacle boss. The final chamber will drop keys to this mysterious door. Some say this is where the Trialmaster himself resides, and perhaps you're willing to take the risk and find out.