Everything You Need to Know About Secondary Calamity Fragments in POE 2

Secondary Calamity Fragments serve as essential pinnacle keys in Path of Exile 2, unlocking advanced encounters like Uber Arbiter fights at the Burning Monolith. These fragments form part of a tiered set—Primary, Secondary, and Tertiary—that modifies map device portals for high-risk, high-reward boss arenas. They bear pictographs of stones at a tower base, signaling their role in activating corrupted Citadels and endgame progression.

Acquisition Methods

Obtain Secondary Calamity Fragments primarily from Citadel bosses in advanced content: Jamanra in Copper Citadel drops them as default loot, with higher yields from corrupted or high-modifier waystones. Stack waystone drop chance via Atlas passives and modifiers like faster monsters or elemental weakness to average multiple fragments per clear. Currency Exchange NPCs in Acts offer purchases post-Act 3, while trading markets value them around 1-1.4 Divine Orbs each.

Run tier 15-16 maps or irradiated waystones for optimal drops, unlocking boss tree points by slaying high-level bosses. High-tier Calamity altars and world events provide sporadic sources, but Citadels remain the most reliable farm.

Usage in Map Device

Insert Secondary Calamity Fragments into Burning Monolith doors alongside Primary and Tertiary counterparts to spawn Uber Arbiter portals. This trio activates the hardest pinnacle boss variant, replacing standard Crisis Fragment rewards when 10+ boss tree points are allocated. Death during the fight downgrades to base Arbiter, preserving fragments for retries.

Fragments are single-use per portal, emphasizing preparation—craft waystones with safety mods like reduced delirium to survive multiple deaths.

Effects and Rewards

These fragments elevate encounters by boosting boss power and loot quality, tying into Prism Diamond chases and Atlas trees. Uber versions demand precise builds, rewarding better Crisis upgrades over base clears. They integrate with league mechanics like Fate of the Vaal, enhancing waystone juicing for exponential fragment farming.

Trading fluctuates with league metas; hoard during early patches, sell peaks mid-league.

Farming Optimization

Prioritize Citadel loops: craft waystones for 6+ mods and high drop rates, glitch delirium removal on boss deaths for safer runs. Allocate Atlas for boss kills in level 79+ areas, scaling to anomalies and Citadels. Groups amplify efficiency, splitting portal access for sustained farms.