TL;DR
- The second HP Tank is locked behind defeating Duke Sirius in Sky-high Tree’s western path
- Master the basic-strong attack combo and GAIA transformation timing for optimal damage
- Use arena walls to evade whirlwind attacks and create strategic positioning advantages
- Prepare by farming energy charges from nearby enemies before engaging the boss
- The additional healing capacity dramatically improves survival in later game challenges
Securing additional healing capabilities represents one of the most impactful upgrades in Shadow Labyrinth’s progression system. Many players overlook this crucial power spike while rushing through the Sky-high Tree region.
Shadow Labyrinth presents significant difficulty spikes, making your HP Tank an essential survival tool. While conceptually similar to healing mechanics in other action RPGs like Elden Ring’s Crimson Tears, the HP Tank distinguishes itself by providing complete health restoration with each use. This becomes particularly valuable during extended exploration sequences and multi-phase boss encounters where sustained survivability determines success.
The limitation of carrying only one HP Tank during early and mid-game progression creates strategic constraints that the second tank completely transforms. This upgrade effectively doubles your effective health pool between checkpoints, fundamentally altering how you approach resource management and combat pacing.
Locating the second HP Tank requires precise navigation through Shadow Labyrinth’s forest biome within the Great Tree ascent sequence. This area’s verticality and branching paths frequently disorient players focused on reaching the summit.
Your primary landmark is the Sky-high Tree Front sector. Progress systematically through this zone until you identify a lengthy pathway positioned in the western quadrant. This route leads upward toward a distinct region culminating in a major narrative boss battle, but first you must overcome Duke Sirius.
From the central checkpoint beacon, maintain rightward progression along the main thoroughfare. Since another combat encounter awaits at the path’s terminus, ensure you’ve accumulated sufficient transformation energy by eliminating intervening foes if your GAIA form charges remain inadequate. This preparation phase typically requires 5-7 minutes of targeted enemy engagement for optimal readiness.
The Duke Sirius confrontation demands methodical approach and pattern recognition. This avian adversary employs three primary attack sequences that require distinct countermeasures.
First, the aerial dive-and-slam maneuver closes distance aggressively, necessitating well-timed evasion. Second, wing-flip animations generate damaging whirlwinds that may manifest singly or in coordinated pairs. Third, the fire-breathing technique typically blankets both lateral ground areas surrounding the boss.
Execute this proven combat strategy: Initiate offensive pressure during Duke Sirius’s descent animation, exploiting this vulnerable window with your enhanced attack chain—light strike, light strike, heavy finisher—for maximum damage output. Then transition to defensive maneuvering as the boss retaliates.
When whirlwind patterns activate, utilize the arena’s perimeter walls for elevation advantages through wall-attachment mechanics. If Duke sustains whirlwind spawning cycles, exercise patience until attack intervals create safe passage opportunities. Upon depleting approximately 50% of the health bar, activate GAIA transformation and unleash continuous assaults to efficiently eliminate the remaining health pool.
Take Duke Sirius seriously, as the bird packs a punch.
Advanced players should note that perfect dodges during the slam attack create extended vulnerability windows, while fire-breathing sequences leave the boss stationary for targeted weak-point strikes.
Beyond fundamental pattern recognition, several advanced techniques dramatically improve success rates against Duke Sirius. The boss’s elemental affinities create specific vulnerability patterns that skilled players can exploit.
Common strategic errors include premature GAIA activation, inadequate energy farming pre-fight, and misjudging whirlwind hitboxes. Seasoned veterans recommend conserving transformation until the health bar crosses the 50% threshold, as early activation often wastes the damage potential against the boss’s more aggressive initial phase.
The newly acquired second HP Tank transforms late-game viability, particularly during endurance challenges and multi-phase encounters where sustained healing capacity determines victory. This upgrade synergizes exceptionally well with specialized weapon loadouts and strategic class selections that emphasize survivability over burst damage.
Post-acquisition, consider revisiting previously challenging areas with your enhanced sustainability, as many contain additional upgrades accessible only with improved healing capabilities.
Congratulations on acquiring a second HP Tank.
Action Checklist
- Navigate to Sky-high Tree Front and locate western path
- Farm energy charges from enemies along the route (if needed)
- Master Duke Sirius attack patterns: dive-slam, whirlwinds, fire-breath
- Execute optimal damage combo and strategic GAIA transformation
- Collect second HP Tank from arena after victory
No reproduction without permission：SeeYouSoon Game Club » How To Get A Second HP Tank In Shadow Labyrinth Master the Duke Sirius boss fight to unlock your second HP Tank in Shadow Labyrinth's Sky-high Tree