Harper
A powerful offensive support who amplifies the entire team rather than dealing damage himself. Harper's team-wide ATK buff, Energy DMG boost, and low-HP damage mitigation make him the premier buffer for burst compositions in Last Asylum: Plague — he doesn't win fights alone, but he makes every teammate broken.
Skills
Skill 1
Bubble
Plays a flute to create bubbles, dealing 622.5% ATK as Energy DMG to a single enemy.
👉 Role: Supplementary single-target poke
• Harper is not selected for his auto damage — it's a passive filler
• At max stars reaches ~1,867% ATK, decent but not the priority
• Upgrade last — every other skill delivers more team value per level
Skill 2
War Flute Sound
Harper plays a war flute to inspire allies, increasing all allied heroes' ATK by 26.295% for 5s.
👉 Role: Primary team amplifier — the main reason to run Harper
• +26.3% ATK to the whole team is multiplicative on top of each hero's base scaling
• First star adds +4.5% Energy DMG for all allies on top of the ATK buff — stacks with Passive Energy DMG
• Final star extends ATK buff duration by +5s, nearly doubling the active window
👉 Best for: Any burst comp — time the cast right before your DPS nukes land
• With Tenacity's CDR, cycle uptime approaches near-permanent in long fights
Skill 3
Vitality Bubble
Harper creates a bubble, reducing the damage received by the lowest-HP ally by 18.0% for 4s.
👉 Role: Clutch survivability for your carry
• Always targets the most at-risk ally automatically — no positioning needed
• At max stars: 22% damage reduction on 2 targets simultaneously
• 4.55s cooldown gives near-constant protection to struggling allies during burst phases
👉 Best for: PvP where enemy burst threatens to delete your DPS before they can act
Skill 4
Warrior's Anthem
In battle, increases ATK of all allied Warrior Heroes by 16.5%.
👉 Role: Composition-dependent team amplifier
• Delivers enormous value if your roster is Warrior-heavy (e.g. Marlena + Daskal)
• At max stars reaches +22.5% ATK for all Warrior allies — a permanent passive buff
• Less impactful in mixed-faction teams; plan your roster around this if investing heavily
• Stacks with War Flute Sound ATK buff during the ultimate window for massive burst spikes
Skill 5
Tenacity
ATK, HP, and DEF +20%; skill cooldown speed +10%.
• Shared with Shadow, Marlena, and Daskal — one of the best support skills in the game
• +10% cooldown speed directly tightens the War Flute Sound cycle for more buff uptime
• +20% ATK stacks multiplicatively with War Flute's buff window and Warrior's Anthem
• Once unlocked at Lv.30 and 8★, Harper's team impact becomes near-irreplaceable
Expert Breakdown
Overall Evaluation
Best Skill Priority
Upgrade in this order
Strengths
Weaknesses
Best Role
Verdict
👉 Harper is S-tier offensive support at max investment. His team-wide ATK amplification via War Flute Sound — stacking with Warrior's Anthem passive and Tenacity — creates a compounding damage window every ~12s. Pair him with Energy DPS heroes like Marlena or any Warrior-faction carry for maximum impact. Use Harper when you have powerful damage dealers who need time and buffs to shine; avoid him if your roster lacks strong DPS to feed his buffs into.