Honkai: Star Rail – Rappa Build Guide

Rappa excels as an AoE Break DMG specialist in Honkai: Star Rail, standing alongside other DPS characters like Boothill and Firefly.

Her standout ability is her impressive Super Break DMG, even surpassing Firefly in this regard, while also providing strong AoE capabilities as an Erudition character. Rappa's unique talent allows her to reduce toughness on enemies that aren’t weak to Imaginary, as long as one enemy has already been weakness broken. This makes her particularly effective in scenarios with large enemy waves, such as the Pure Fiction event.

When it comes to building Rappa, her setup closely mirrors that of Firefly, especially when considering stats like Break Effect. However, there are key differences in areas such as light cone choices and planar ornament sets. Although the two characters share similarities, Rappa’s build requires some distinctive strategies to optimize her performance in Honkai: Star Rail.

Best Rappa Relics in Honkai: Star Rail

To maximize Rappa’s Break DMG potential, the 4-piece Iron Cavalry Against the Scourge relic set is her top choice. The 2-piece bonus increases her Break Effect, and the 4-piece bonus lets her deal additional damage by bypassing enemy defenses during Break and Super Break, as long as her Break Effect is at least 250%, which is an achievable goal for her. If obtaining the perfect substats on this set proves challenging, the Thief of Shooting Meteor set is a great alternative. Its 4-piece bonus not only increases Break Effect but also regenerates energy every time Rappa inflicts a weakness break. This is especially useful in battles with large groups of enemies, enabling more frequent use of her Ultimate and increasing her Break DMG and Basic Attacks while in her Sealform state. As a stopgap, players can mix sets that enhance Break Effect with Speed, as Rappa thrives when her Speed exceeds the 145 mark.

For Planar Ornaments, Rappa’s best option differs from Firefly’s. Talia: Kingdom of Banditry is the optimal set for her, offering an increase in Break Effect if she reaches 145 Speed. Alternatively, the Space Sealing Station set is a solid choice for those focusing on her ATK, aiming for over 3200 ATK during combat to enhance her overall damage, including Break DMG. Forge of the Kalpagni Lantern is a more situational choice, only useful when enemies have a pre-existing Fire weakness, which Rappa cannot inflict, making it less universally effective compared to other characters like Firefly.

When prioritizing stats, aim for ATK% on both the Body and Planar Sphere, Speed boots, and a Break Effect Link Rope. Unlike most DPS characters, Rappa does not require Crit stats, so focus on substats that increase Break Effect > SPD > ATK for maximum efficiency.

Best Rappa Light Cones in Honkai: Star Rail

Rappa’s reliance on Break Effect limits her optimal light cone choices, with only two notable options providing substantial boosts to this stat. Her top light cone is her signature, Ninjutsu Inscription - Dazzling Evilbreaker, which grants an impressive 60% Break Effect at S1 and provides energy generation at the start of the battle. This light cone also advances Rappa’s turn with each basic attack, aligning perfectly with her need for consistent actions to maximize Break DMG output. For those seeking a more accessible option, After the Charmony Fall is an excellent alternative. When fully superimposed, it offers a similar Break Effect boost and increases Rappa’s Speed after using her Ultimate, making it a great fit for her playstyle.

Beyond Break Effect-focused light cones, Rappa has other viable options that emphasize ATK and utility. Eternal Calculus is the best fully free-to-play choice, providing a significant ATK boost and Speed increase when facing three or more enemies, making it ideal for multi-target encounters. For players who can access freemium options, Night on the Milky Way is a strong contender, significantly boosting Rappa’s ATK, though it doesn’t directly enhance her Break DMG focus. Lastly, Geniuses' Repose can be considered at max superimposition, offering a 32% ATK boost, though the secondary Crit DMG bonus is less useful for Rappa, as she doesn’t rely on Crit stats.

By following this guide, you can fully unlock Rappa’s potential as a powerful AoE Break DMG specialist, making her an invaluable asset in tough battles in Honkai: Star Rail.