History of Armor sets

Overview

An armor set is a group of Legendary Armor pieces that together give a bonus: a first bonus at 2 pieces and a second at 4. The Edge of Fate rework that introduced Armor 3.0 (July 15, 2025) is when the current stat, archetype and tier system began; sets on older expansions have their own pages.

Set bonuses

• 2 pieces: the first bonus. Any two pieces from one set count.
• 4 pieces: the second, stronger bonus. Four of a set's five pieces are enough, which leaves a slot for an Exotic (as on AION Adapter and Thunderhead).
• Mixing: you can commit to one set, or mix two sets for two 2-piece bonuses.

In practice the bonuses suit specific builds:

• AION Adapter: 2 pieces, Force Absorption (final blows with rocket, grenade launchers or micro-missiles reduce area-of-effect damage). 4 pieces, Reactive Shock (a burst when taking melee damage while Force Absorption is active).
• Thunderhead: 2 pieces, License to Thrill (grenade or the Nanotech Tracer Missiles trait gives stacking point-blank resistance). 4 pieces, Lethal Weave (grenade energy from unravelling combatants).
• Techsec: 2 pieces, Wrecker (increased kinetic damage to shields, overshields, vehicles and constructs). 4 pieces, Concussive Rounds (kinetic shockwave on powerful combatants or shield breaks).
• Resonant Fury: 2 pieces, Resonant Plating (health regenerates after melee damage from a powerful combatant). 4 pieces, Siphoning Touch (melee hits build stacks, which switching weapons heals and consumes).
• Bushido (Hunter, PvE and PvP): 2 pieces, Iaido; 4 pieces, Unfaltering Focus.
• Last Discipline (PvP): 2 pieces, Terminal Velocity (faster reloads for primary weapons after primary final blows); 4 pieces, Power Loader (Orb of Power pickups grant Special ammo progress).

Archetypes and tiers

Armor 3.0 gives each piece an archetype (which stats it rolls) and a tier from 1 to 5. Tier 5 pieces add a tuning socket. Full detail, including the disagreement over archetype counts, is in Armor 3.0.

Edge of Fate sets

The Edge of Fate rework includes eight sets: AION Renewal, AION Adapter, Techsec, Bushido, Last Discipline, Twofold Crown, Lustrous and Collective Psyche. Lustrous is a Solstice set.

Acquisition

Sets come from different places:

• World activities: AION Adapter and AION Renewal drop from exploring Kepler.
• Reputation: Thunderhead pieces are unlocked by ranking up with Nimbus on Neomuna.
• Raids: Resonant Fury comes from the Vow of the Disciple raid; Collective Psyche comes from The Desert Perpetual raid (released July 19, 2025).
• PvP: Last Discipline is a Crucible set.
• Seasonal: Lustrous is a Solstice set forged with Solstice Alloy.

Notes

• Some set sources are listed differently across references (Bushido, Thunderhead, AION Adapter).