Overview
The Break Momentum Bar (破势条, Pòshì tiáo) is the Calamity Beast-specific variant of the posture-break system in Honor of Kings: World. Unlike the standard white posture bar found on most bosses and elites, the Break Momentum Bar requires coordinated 4-player burst within a time window to deplete. No single player can break it alone under normal conditions.
Where it Appears
Break Momentum bars appear on Calamity Beast (灾兽) cooperative raid bosses that unlock at account level 20. Confirmed bosses using the system include:
Bifang (毕方, fire-plus-lightning raid boss)
Multiple Calamity Beast variants confirmed at launch with fire, ice, and fire-plus-lightning elemental typings
The Three-Step Party Rhythm
The standard party approach to a Break Momentum fight is:
Step 1 (Buffs): All four players switch to Support Resonances to stack buffs on the party.
Step 2 (Burst): Players swap back to DPS Resonances and coordinate damage to deplete the Break Momentum bar within the time window.
Step 3 (Vulnerable Burst): Once the bar depletes, the boss enters Vulnerable state for 8 seconds with +50% damage taken. The party commits all remaining cooldowns to burst during this window.
Elemental Counter Advantage
Bringing Resonances with counter-element affinity against the Calamity Beast's element reduces the amount of damage needed to deplete the Break Momentum bar. For example, ice-flavored Resonances like Wang Zhaojun chip fire bosses' Break Momentum faster than neutral-typed Resonances.
Design Purpose
The Break Momentum mechanic exists to force coordinated play in co-op content. Standard posture bars can be depleted by a single skilled player; Break Momentum cannot, which ensures that party composition, buff-stacking communication, and DPS timing all matter in Calamity Beast encounters. It is the core mechanical differentiator between solo open-world bosses and cooperative raid content in Honor of Kings: World.
Where the White Bar Appears on Screen
Every enemy that can be broken carries a thin white bar directly beneath its HP bar. The bar is always visible once combat starts, so there is no hidden tracking; players can see the bar deplete in real time as parries and heavy strikes land. On larger bosses the bar is wider and more readable, which is why previewers most often describe the mechanic in the context of boss encounters rather than standard mobs.
The white bar is purely the break resource. It does not represent HP, stamina, or a shield. Attacks that deal high raw damage can still fail to break the bar quickly if they are not weighted toward stagger, while parries and heavy openers can drain the bar with comparatively low damage contribution. Because of this, party composition planning usually separates damage contribution from break contribution when picking a duo.
Triggering the Break State
When the white bar empties, the enemy enters a break state, which is the Vulnerable State shown on screen as a stun plus damage amplification. The full break-state effects, the execution finisher, the multiplayer burst behaviour, and the specific damage multipliers are documented together in the main Posture Break System article. Role-based pacing, including why Vanguard heroes drop the bar faster than Assault or Support heroes, is covered in the Combat System overview.