Weakness Assault is Honkai: Star Rail's Tides of War Day 4 challenge. See the best teams and Support Functions, how to beat Day 4, stage details, and all the rewards here!
| Tides of War Event Guides | ||
|---|---|---|
| Day 1 | Day 2 | Day 3 |
 Day 4 | Day 5 | Day 6 |
List of Contents
- Day 4 Best Teams
- How to Beat
- Stage Details
- Day 4 Rewards
- Information
- Related Guides
Weakness Assault Best Team
Tides of War Day 4 Best Team
| Best Team for Day 4 | |||
|---|---|---|---|
| Himeko | Xueyi | Ruan Mei | Lynx |
The best team for Day 4 consists of the Trial Characters available for the stage. Himeko and Xueyi will be your DPS characters while Ruan Mei increases your Weakness Break efficiency and Lynx provides healing.
Use Himeko and Xueyi's AoE attacks to bring down the Toughness of all enemies on the field much faster. This will help raise your Grit Values and activate the buffs of higher Grit Phases.
Best Support Functions for Day 4
| Support Function | Buff Effect |
|---|---|
 Expose Weakness | Grit Phase 2 (Option) Breaking any enemy's Weakness will dispel the boss enemy's Weakness Protection until the boss enemy takes their turn again. Increases all allies' Weakness Break efficiency by 50% and deals a set amount of additional DMG to enemies that already have their Weakness Broken. |
 Pursuer | Grit Phase 3 (Option) Increases DMG taken by enemies afflicted with Weakness Break by 80%. |
We recommend using the Expose Weakness and Pursuer Support functions so that it'll be easier to Weakness Break boss enemies even outside of Grit Phase 4.
How to Beat Weakness Assault
Weakness Break Other Enemies First
Boss enemies will have Weakness Protection that prevents you from reducing their Toughness. With the Pursuer Support Function equipped, you can Weakness Break other enemies to remove it. Try to Weakness Break enemies with weaker Toughness bars first.
Reach Bronya During the Third Cycle
Based on our test runs, you should be fighting Bronya during the 3rd cycle or earlier to perfect Day 4. Follow the same strategy of getting Weakness Breaks on other enemies first.
Target Bosses When Protection is Gone
Once the boss has their Weakness Protection gone, you can start focusing your attacks on them. Use AoE attacks so that you can also target other enemies on the field and raise your Grit Value.
Spam Your Attacks in Grit Phase 4
In Grit Phase 4, all enemies on the field will be Weakness Broken, so you can freely spam as many attacks as you can. Keep the boss as your main target so that they get the brunt of the damage.
Weakness Assault Stage Details
Tides of War Day 4 Trial Characters
| Trial | Character Build |
|---|---|
| Ruan Mei | Memories of the Past |
| Himeko | Make the World Clamor |
| Silver Wolf | Resolution Shines As Pearls of Sweat |
| Lynx | Warmth Shortens Cold Nights |
| Xueyi | On the Fall of an Aeon |
Tides of War Day 4 Grit Mechanics
| Day 4 Grit Mechanics |
|---|
| ◆ Activate Grit Mechanics in battle to accumulate Grit Value and elevate Grit Phase. ◆ Break your enemy's Weakness or attack Weakness Broken enemies to accumulate Grit Value. |
Tides of War Day 4 Support Functions
| Support Function | Grit Phase & Buff Effect |
|---|---|
 Ignore Weakness | Grit Phase 2 (Option) After Breaking an enemy's Weakness, deals a seat amount of DMG that reduces Toughness to all enemies. This Toughness reduction ignores Weakness Protection. |
| Expose Weakness | Grit Phase 2 (Option) Breaking any enemy's Weakness will dispel the boss enemy's Weakness Protection until the boss enemy takes their turn again. Increases all allies' Weakness Break efficiency by 50% and deals a set amount of additional DMG to enemies that already have their Weakness Broken. |
 Shattershield | Grit Phase 3 (Option) When attacking a Weakness Broken enemy, there is a 30% fixed chance to deal 3 times the DMG. |
| Pursuer | Grit Phase 3 (Option) Increases DMG taken by enemies afflicted with Weakness Break by 80%. |
 Mega Booster | Grit Phase 4 (Fixed) All enemies will be afflicted with Weakness Broken and trigger all Weakness Break effects applicable to the unit. Increases all allies' Weakness Break efficiency by 200%. Enemies that already have their Weakness Broken receive increased DMG by 150% and upon being attacked will have their action delayed by 5%. |
Phases 2 and 3 each have two Support Functions you can choose from. You can only pick one for each phase.
Tides of War Day 4 Enemies
| Enemies | Weaknesses |
|---|---|
Ice Out of Space | |
Stormbringer | |
Voidranger - Reaver | |
Abundance Sprite - Malefic Ape | |
The Ascended | |
Disciples of Sanctus Medicus - Internal Alchemist | |
Bronya | |
Automaton Direwolf | |
Silvermane Cannoneer |
Weakness Assault Rewards
Tides of War Day 4 Rewards
| Objectives | Rewards |
|---|---|
| Enter “Grit Phase 4: Power Awoken” 1 time. | Stellar Jade x40 Traveler's Guide x3 Refined Aether x3 |
| Defeat the first wave's boss. | Stellar Jade x40 Traveler's Guide x3 Credit x30,000 |
| Defeat the second wave's boss. | Relic Remains x20 Lost Crystal x3 |
| Defeat the third wave's boss. | Relic Remains x10 Credit x20,000 |
Weakness Assault Information
Part of Tides of War
Weakness Assault is the Day 4 stage of Tides of War where you Weakness Break enemies to earn extra Grit Value. In this stage, Erudition and other AoE characters will be the best ones to use for Day 4.
Tides of War Event Guide
Honkai: Star Related Guides
Tides of War Event Guide
Tides of War Day Guides
| Stage | Trial Characters |
|---|---|
| Day 1 | ◆ Acheron ◆ Black Swan ◆ Kafka ◆ Gallagher ◆ Pela |
| Day 2 | ◆ Jingliu ◆ Blade ◆ Bronya ◆ Luocha ◆ Lynx |
| Day 3 | ◆ Imbibitor Lunae ◆ Argenti ◆ Sparkle ◆ Huohuo ◆ Tingyun |
| Day 4 | ◆ Ruan Mei ◆ Himeko ◆ Silver Wolf ◆ Lynx ◆ Xueyi |
| Day 5 | ◆ Seele ◆ Jing Yuan ◆ Fu Xuan ◆ Sparkle ◆ Tingyun |
| Day 6 | ◆ Dr. Ratio ◆ Topaz ◆ Argenti ◆ Aventurine ◆ Hanya |
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