History of Blade Against Blade

Blade Against Blade is an Equilibrium dungeon triumph (15 points): complete all encounters with the Cutthroat Combat feat active.

How to complete

1. Open Equilibrium from the Renegades tab in the Portal (requires Renegades) and enable the Cutthroat Combat feat before launching. Search results describe it as simulating a contest-mode style -40 power delta.
2. Clear all three encounters with it active: board the Harvester, defeat the Harrow, and defeat Sere (Dredgen Sere). Each shows as a separate objective.
3. Mechanics per encounter: Harvester uses Gathering Shadows (Shadow Novice) via special Sparrows; the Harrow expands it with Lackeys and Darkness panels (Shadow Apprentice); the final boss adds Shadow Master and the Ascendant Realm with Taken orbs.

Reward

Per a search summary of light.gg, completing it increases the initial chance for the Heirloom exotic bow to drop. It was added in Season 28. I could not confirm which seal lists it; the Praxic seal guide I opened mentions other feat triumphs, not this one.

Caveats

A post on X (not opened in full) reported the triumph not progressing in some feat combinations after a hotfix, so verify progress in the tracker.