As you progress through Blue Protocol: Star Resonance, you will eventually unlock the ability to learn a second Class for your character. While this seems like an exciting way to expand gameplay variety, it also raises an important question: which second Class should you actually choose?
The Most Efficient Second Class In BPSR – Verdant Oracle (Lifebind)

The Verdant Oracle with the Lifebind specialization is the best second Class to unlock. It offers strong utility and performance without relying too much on gear.
This makes the Verdant Oracle a great pick for players who want to try out a new class, without requiring them to spend too much time or coin farming or buying separate gear. Additionally, Lifebind makes the class highly sought after in any group because of the healing powers of the class. Lifebind Oracle is a highly sought-after role in group content because of the healing powers of this class.
One of the biggest advantages it has is how effective it is for AFK farming. As a Lifebind Oracle, you can use auto-battle to continuously heal players around you, which counts their kills as yours as well. This allows you to receive drops even when not in a party. It’s an easy and efficient way to farm resources passively while helping others in the field.
Recovery Shield Knight – The Best Tank Option

If you prefer a tanking role, the Recovery Shield Knight is another great Second Class option. Like the Oracle, this Class does not depend too much on damage stats, which reduces the need for frequent upgrades and farming.
The Recovery Shield Knight pairs especially well with Wind Knight (Vanguard), since both use Strength as their main attribute. When switching between the two, your gear will automatically adjust its advanced attributes and set bonuses.
This means that players can easily play both roles without having to refine or reforge their entire gear set. Since both classes benefit from similar stats like Crit, Haste, and Mastery, you can easily work with them without wasting resources. This pairing is especially useful for players who like to alternate between tank and DPS roles.
Double Spec Options for Mages and Support Roles

For players who prefer magic-based gameplay, Frost Mage (Icicle) and Frost Mage (Frostbeam) form a strong dual specialization combo. Both share similar stat requirements, primarily Crit, Mastery, and Versatility, which makes pairing them together much more efficient. You can use this setup to switch between mob-clearing (Frostbeam) and boss-fighting (Icicle) gears.
Another recommended combination is Verdant Oracle (Lifebind) and Beat Performer (Concerto or Dissonance). This pairing allows players donning a support role in a team to alternate between healing and buffing depending on what is needed at that moment.
Players who are interested in ranged DPS will find that the Marksman build works well as a secondary Class. It can complement melee or support mains while making full use of shared gear stats.
How to Unlock a Second Class in Blue Protocol: Star Resonance

Unlocking a second Class in Blue Protocol: Star Resonance requires a special item called Hero’s Radiance. This item can be obtained in two ways: by completing the “New Class” quest after reaching Adventurer Level 21, or by purchasing it from the in-game shop for 680 Bound Rose Orbs.
Once you have Hero’s Radiance, simply open your Class menu, select the Class you want to learn, and begin a short tutorial quest. However, before you do that, remember that unlocking and maintaining a second Class in Blue Protocol can be resource-intensive, especially since the game’s gear and material system is time-gated, and key items like Skill Advance Books are always in short supply.
For new players, checking out some beginner tips can help you prepare the right materials and plan your progression efficiently before unlocking a second Class.
When to Avoid Unlocking a Second Class
Avoid unlocking a Second Class for now if
- You still have a few key skills in your primary class that you want to first work on and unlock.
- You are coming to terms with the combat and gameplay mechanics.
- You have not fully decided what your endgame build is going to be.
- There is still farming to be done for gear upgrades and refining.
That completes everything there is to know about the Second Class options in Blue Protocol: Star Resonance. The game provides a good level of flexibility with this option to sharpen and clearly define an endgame build, so use this option wisely.

