Honkai: Star Rail · Relic Set

Iron Cavalry Against the Scourge

Break and Super Break damage relic set

Introduced in v2.3

Iron Cavalry Against the Scourge gives 16% Break Effect with two pieces. With four pieces, it adds DEF ignore to Break DMG at 150% wearer Break Effect and additional DEF ignore to Super Break DMG at 250%. Consider it for a build that can meet those thresholds and deal the corresponding damage types; the thresholds are separate and the additional bonus applies specifically to Super Break DMG.

Pieces4Rarity5

Iron Cavalry Against the Scourge GUIDE

Understand Iron Cavalry Against the Scourge

Useful when…

Supporting Break DMG when the wearer reaches 150% Break Effect.
Adding the further Super Break DMG DEF ignore when the wearer reaches 250% Break Effect.

What are the thresholds?

Two pieces increase Break Effect by 16%. At 150% or higher wearer Break Effect, the four-piece effect makes Break DMG dealt to the enemy ignore 10% of its DEF. At 250% or higher, Super Break DMG dealt to the enemy additionally ignores 15% of its DEF. The additional effect is specifically tied to Super Break DMG.

How should I assess the four-piece value?

Check the wearer's Break Effect against both thresholds. Reaching 150% enables the stated Break DMG effect; reaching 250% enables the additional Super Break DMG effect as well. The set gives a flat two-piece Break Effect bonus, but its threshold effects are not active below their respective values. Genius of Brilliant Stars has a different DEF ignore condition: its wearer deals damage to a target, with extra DEF ignore if the target has Quantum Weakness.

What should I avoid conflating?

Do not apply the 15% additional DEF ignore to all damage: it is specified for Super Break DMG and requires 250% Break Effect. The 10% effect at 150% is for Break DMG. The two thresholds describe distinct conditions.

Limitations and tradeoffs

The four-piece effects require reaching 150% and 250% Break Effect thresholds.
The additional 15% DEF ignore is limited to Super Break DMG.

Common mistakes to avoid

Treating the 250% threshold as a condition for all of the set's DEF ignore.
Applying the additional Super Break DMG effect to damage types not named in its condition.

Effects and reference details

2-piece bonus

Increases Break Effect by 16%.

4-piece bonus

If the wearer's Break Effect is 150% or higher, the Break DMG dealt to the enemy target ignores 10% of their DEF. If the wearer's Break Effect is 250% or higher, the Super Break DMG dealt to the enemy target additionally ignores 15% of their DEF.