Maximizing Your Endgame Potential: The Best Second Spec To Unlock For Each Class In Blue Protocol: Star Resonance

The recent Western launch of Blue Protocol: Star Resonance has reignited the global hype for anime-style MMORPGs. As players rush to explore the vibrant world of Regnus, a critical question for both dedicated PvE raiders and Free-to-Play enthusiasts alike emerges: what is the most cost-effective and game-changing second class specialization (Spec) to unlock? With the game’s unique class-switching system allowing for immense player freedom, your Spec choice is the ultimate determinant of your endgame utility and overall combat effectiveness. This in-depth guide, updated for the latest major patch, analyzes each primary class and pinpoints the superior secondary Spec for maximizing your character’s potential and securing highly sought-after group spots in high-level content like 20-player Raids and five-player Dungeons.

Understanding the “Star Resonance” Spec System

Every class in Blue Protocol: Star Resonance begins with a default specialization, but at level 20, players gain the ability to unlock a secondary Spec. This choice fundamentally alters your playstyle, often shifting your role within the holy trinity—Tank, DPS, and Support. While the initial Spec unlock is free, subsequent class unlocks cost in-game currency, making the first secondary choice a crucial investment in your character’s long-term build optimization.

DPS Classes: Aggression and Critical Utility

• Marksman (Ranged DPS)
  • Primary Spec: Wildpack (Wolf Companion, Mastery/Haste focus)
  • Best Second Spec: Falconry
  • Justification: The Falconry Spec trades the multi-target utility of the Wild Wolf for a focused, high-Crit damage profile with the Falcon companion. This shift is vital for single-target DPS against Raid Bosses where pure burst is paramount. The Falconry playstyle leverages Agility and Crit attributes, making it one of the highest CPC (Cost Per Click) damage dealers in the game for non-AoE content. It’s the ideal unlock for Marksman players serious about competitive damage meters.
• Stormblade (Melee DPS)
  • Primary Spec: Iaido Slash (Front-loaded burst damage)
  • Best Second Spec: Moonstrike
  • Justification: While Iaido Slash offers excellent initial burst, Moonstrike is the clear winner for sustained DPS and superior mobility, which is essential for dodging complex boss mechanics. Moonstrike focuses on an Agility/Haste/Luck build, generating high-uptime buffs and maintaining immense pressure. This Spec is currently S-Tier for its blend of high damage and positional flexibility, making it the most sought-after Stormblade specialization for endgame progression.
• Frost Mage (Caster DPS)
  • Primary Spec: Icicle (High single-target burst, Crit-focused)
  • Best Second Spec: Frostbeam
  • Justification: The Frostbeam Spec is an invaluable unlock for its Crowd Control (CC) capabilities, turning the Frost Mage into a hybrid DPS-Utility powerhouse. While Icicle wins on pure single-target damage, Frostbeam’s focus on Intellect/Haste/Mastery grants superior AoE control, which is mandatory for managing large dungeon mob packs. Its ability to lock down targets secures its spot as the more valuable long-term Spec for overall MMO content viability.

Tank Classes: Control and Survivability

• Heavy Guardian (Guard Melee Tank)
  • Primary Spec: Earthfort (AoE threat generation, mob grouping)
  • Best Second Spec: Block
  • Justification: The Block Spec is the definitive choice for pure mitigation. While Earthfort excels at herding trash mobs, Block’s focus on Strength/Mastery/Luck and enhanced Block abilities is specifically tuned to survive the devastating, singular hits from Raid and Dungeon Bosses. This Spec is a non-negotiable unlock for any Heavy Guardian aiming to tank the hardest content, turning them into a true damage-reduction machine that trivializes certain high-damage phases.
• Shield Knight (Guard Melee Tank)
  • Primary Spec: Recovery (Self-sustain, solo play focus)
  • Best Second Spec: Shield
  • Justification: The Shield Spec is the dedicated group-play tanking specialization. By boosting max HP and providing stronger defensive tools for the entire party, it eclipses Recovery’s focus on self-healing. Its ability to maintain a superior shield uptime and duration makes it the preferred choice for team survival in challenging group content, offering a more reliable utility to the whole MMORPG party.

Support Classes: Healing and Group Buffs

• Verdant Oracle (Support Caster Healing)
  • Primary Spec: Smite (Healing with added damage, shield focus)
  • Best Second Spec: Lifebind
  • Justification: Lifebind is the mandatory unlock for any serious healer. It sacrifices Smite’s minor damage output for a massive increase in pure healing intensity and buff enhancement. In high-stakes endgame content where a single misstep can wipe the party, the raw, reliable, and powerful healing output of the Lifebind Spec is irreplaceable. It is the cornerstone of any successful Raid or difficult Dungeon clear, ensuring high team sustain and survivability.
• Beat Performer (Support Melee DPS/Healer)
  • Primary Spec: Dissonance (Damage-to-heal hybrid, proc-based)
  • Best Second Spec: Concerto
  • Justification: While Dissonance is fun for solo leveling, Concerto is the god-tier support Spec for group play. This specialization focuses heavily on delivering powerful team-wide buffs, including substantial damage and crit chance increases. A Beat Performer utilizing the Concerto Spec fundamentally enhances the entire party’s damage output, making them one of the most desired utility classes for optimizing group clear times and achieving high-score runs. The boost to the party’s effective DPS makes this Spec an extremely high-value addition to any roster.
• Wind Knight (Melee DPS/Utility)
  • Primary Spec: Vanguard (Ground combat, Strength focus)
  • Best Second Spec: Skyward
  • Justification: The Skyward Spec is a unique unlock that focuses on the class’s signature aerial combat. It provides unparalleled mobility and an extremely high skill ceiling playstyle. For players who have mastered the core mechanics, Skyward allows for relentless pressure and precise positioning, essential in challenging multi-phase boss fights. Its focus on Strength/Crit/Luck also translates into superior burst windows, securing its place as the high-skill expression DPS choice for this class.

Conclusion: Strategic Unlocks for Investment Growth

Choosing your first secondary Spec in Blue Protocol: Star Resonance is not just about a different skill set—it’s a strategic MMO investment. The choices highlighted above represent the current meta for endgame content, focusing on specs that provide superior group utility, raw damage output, or non-negotiable survivability in the game’s toughest challenges. Unlocking Falconry for Marksman, Moonstrike for Stormblade, Block for Heavy Guardian, or, most critically, Lifebind for Verdant Oracle and Concerto for Beat Performer, will dramatically enhance your character’s value and ensure a steady flow of invitations to the most rewarding, high-level MMORPG content. Make your choice wisely, and dominate the world of Regnus!