Mongil: Star Dive Avardan Boss Guide — Best Team, Strategy & Drops

Mid-progression Earth dungeon boss — weak to Lightning. HP ~682k at level 40 with stagger gauge doubled to ~29k. The first encounter that gates teams without a real Lightning carry. Penny + Reina + Bonnie (or Benjamin / Yeonhwa) is the launch comp.

Avardan Boss Guide — Best Team, Strategy & Drops

Avardan
Mongil: Star Dive · Boss Guide

Avardan Boss

Earth dungeon boss · Recommended Level 40 · 1.0 launch

Mid-progression Earth dungeon boss — weak to Lightning. HP ~682k at level 40 with stagger gauge doubled to ~29k. The first encounter that gates teams without a real Lightning carry. Penny + Reina + Bonnie (or Benjamin / Yeonhwa) is the launch comp.

  • Boss
  • Earth
  • Weak: Lightning
  • Lvl 40
  • HP 682k
  • Mid-progression
How to clear it

Recommended approach

Avardan is the level 40 Earth dungeon boss — weak to Lightning. HP jumps to ~682,000 (9× Custos) with the stagger gauge doubling to ~29,070 and groggy DEF rising to 498. This is the first encounter where stagger management alone is insufficient: you need both real Lightning damage AND clean stagger timing.

Penny (SSR Lightning Brawler) leads cleanly via Coin economy + Electric Overload spending. Reina (SR Lightning Destroyer) anchors the stagger role thanks to her HP-scaling Neutralization DMG. Benjamin (SR Lightning Slayer) provides burst windows via Nightmare Sprint. Yeonhwa (SR Lightning Slayer) chips in via Wraith Crit DMG scaling + Support auto-procs. Bonnie covers Wind support — Encore (C2) team Crit DMG buff stacks with Yeonhwa's Wraith scaling.

Pull-priority for this fight: Penny is the launch S-tier Lightning carry. Without her, Reina + Benjamin (both SR) still clear at recommended level but feel slow against Avardan's 682k HP. F2P Wind carries (Sangun, Esther) are NOT a substitute — Wind deals neutral damage vs Earth resist (~75% damage). Pull Lightning or wait.

  • Story / first clearBFirst DPS check requiring a real Lightning carry. Equipment ~Lv38+ for a comfortable clear.
  • Conquest ticketsSRepeatable for Lightning-themed crafting materials. High-HP boss means proportional drop scaling per tier.
  • SpeedrunC682k HP means sub-3-minute clears require Penny C2+ or Reina C2+. Stagger timing is the bottleneck.
  • F2P difficultyBClearable with Reina + Benjamin + Francis / Bonnie, but expects Equipment ~Lv38+ and patient stagger play.
  • Reroll filterAIf Avardan walls you long-term, reroll for Penny — she defines the entire Lightning progression curve.

Stagger windows

  • Single weakness (Lightning) — clean elemental matchup, no element-locked phase shifts.
  • Same BIND stagger animation as earlier bosses — predictable burst windows.
  • 10 HP phases — multiple stagger cycles, room to recover from a missed Special.
  • Earth element → Earth attacks deal reduced damage (no Affliction payoff), but Earth-resist works in your favour if your team is Lightning-focused.
  • Reina's HP-scaling Neutralization DMG synergises perfectly with stagger break — she anchors the role.
  • Groggy DEF 498 — burst window converts cleanly during stagger; Penny Coin dumps + Yeonhwa Crit chains both pay off.

Boss threats

  • 682k HP — 9× Custos at the same launch-progression pace. Gear scaling matters more than at earlier bosses.
  • Stagger gauge doubled to ~29,070 — single-Special stagger breaks no longer realistic, plan for 4-5 Special cycles per phase.
  • Higher boss ATK (583) and DEF (833) — survival comp + healer needed at low equipment level.
  • Lightning-only elemental answer — Wind / Fire / Ice carries deal neutral damage, no efficient elemental amp.
  • Without Penny, the fight stretches to 4-5 minutes — SR-only Lightning teams clear but feel grindy.
  • Higher Conquest tier scaling makes the fight punishing — expect to gear-grind through several attempts before hitting clean clears.
How to clear it

Recommended team

Best counter carry, best team comp, and farmable alternates to clear Avardan.

BIS counter carryBISPenny (Lightning Brawler)SSR Lightning Brawler. Coin economy + Electric Overload spend loop. Savvy Investment signature artifact compounds her Coin generation into burst windows. The cleanest single-character clear of Avardan at C0 once Equipment ~Lv38+ is reached.
Best team compBISPenny + Reina + BonnieLaunch Lightning SSR + Lightning Destroyer SR + Wind Supporter SR. Penny leads burst, Reina anchors stagger via HP-scaling Neutralization, Bonnie's Encore (C2) team Crit DMG amplifies both. Cross-element comp — sacrifices mono-Lightning Spirit King payoff for Bonnie's Wind support utility.

Alt team comps

  • Penny + Reina + Benjamin (mono-Lightning) — All-Lightning. Penny leads, Reina stagger, Benjamin Nightmare Sprint burst. Highest single-element DMG ceiling but loses Bonnie's Crit DMG team buff. Use if you have Spirit King 4pc on all three.
  • Reina + Benjamin + Francis (F2P SR-only) — Pure-SR Lightning team + Earth healer. Reina HP-scaling Neutralization leads stagger, Benjamin Nightmare Sprint burst, Francis Drug Field heal. Slower clear, fully F2P at recommended level.
  • Yeonhwa + Penny + Bonnie (Crit-focused) — Crit-leaning Lightning comp. Yeonhwa Wraith Crit DMG scales off Lightning DMG + Bonnie Encore team Crit DMG = compounding crit scaling. Highest single-window DPS but requires Equipment ~Lv40+.
Fight mechanics

Avardan at a glance

Level 40 DPS check stats and stagger numbers.

Combat stats (in-game, level 40)

  • ElementEarth — neutralises Earth Affliction from Gabi / Ellie / Francis.
  • WeaknessLightning — Penny / Reina / Benjamin / Yeonhwa are the elemental answer.
  • HP~682,000 — 9× Custos at the same launch-progression pace. First major HP wall.
  • ATK / DEF583 ATK / 833 DEF — higher boss damage, ~140% Custos DEF.
  • Stagger gauge~29,070 / Groggy DEF 498 — doubled stagger gauge, single-Special breaks no longer realistic.
  • Recommended level40 — Equipment ~Lv38+ realistic clear threshold.
  • HP phases10 — multiple stagger cycles, paced for ~4-5 minute clears at recommended level.
  • Stagger animationBIND — same as earlier bosses.
Boss rotation

Suggested clear rotation

Lightning core rotation — Penny leads, Reina stagger, Bonnie / Benjamin amp.

  • 1. Tag-In with Bonnie (or Jiwon for Wind synergy bridge)Open with the Supporter Tag-In — Bonnie's French Horn Tag-out triggers Encore Canto C2 team Crit DMG window for the next Lightning DPS swap.
  • 2. Swap to Penny for Coin generation + Electric Overload spendPenny's BA combo + Special generate Coins; spending Coins on Electric Overload converts to single-instance Lightning DMG. Primary damage line of the fight.
  • 3. Reina holds stagger via HP-scaling Variant AttacksSwap to Reina for stagger build. Variant Attack 3rd Hit (6 Lightning Energy) is the highest single-instance stagger contribution. Reina's HP-scaling Neutralization DMG via Superconductive Body passive carries the gauge.
  • 4. Trigger stagger → swap to highest single-instance damage characterStagger breaks after ~4-5 Special cycles. During BIND window, swap to Penny for Coin dump or Yeonhwa for Wraith Crit chain. Avoid Reina BA during BIND — her Variant Attack 3rd Hit is better as the next-stagger contributor than the burst tool.
  • 5. Repeat — Avardan has 10 HP phases682k HP / 10 phases = ~68k per phase. Each phase opens fresh stagger gauge after 10s recovery. Pace the fight around 4-5 stagger cycles per phase. Equipment ~Lv38+ keeps the rhythm sustainable.
Loot

What Avardan drops

Lightning-themed crafting materials. Repeatable for the Spirit King + Ice Heart gear path.

Drop table

Avardan drops Lightning-themed crafting materials used in the Spirit King SSR set + Ice Heart SR bridge set + Lightning weapon upgrades. The exact drop list rotates with Conquest difficulty and is shown in-game on the dungeon entry screen.

Repeatability

Avardan is repeatable via Conquest tickets. Each clear consumes 1 ticket. Higher Conquest tiers drop higher-tier Lightning crafting materials. Prioritise Avardan to farm Spirit King 4pc for Penny / Reina / Benjamin / Yeonhwa.

Counter picks

Characters that counter Avardan

Lightning carries scale everything. Penny is the launch ceiling.

  1. 1PennyPennyLaunch SSR Lightning Brawler. Coin economy + Electric Overload burst. Cleanest single-carry clear of Avardan once Equipment ~Lv38+.Lightning · Brawler (SSR)
  2. 2ReinaReinaSR Lightning Destroyer. HP-scaling Neutralization via Superconductive Body — anchors the stagger role natively. Strongest SR stagger contributor against Avardan.Lightning · Destroyer (SR)
  3. 3BenjaminBenjaminSR Lightning Slayer. Nightmare Sprint enhanced Special + Tag-out burst windows. F2P single-target burst carry.Lightning · Slayer (SR)
  4. 4YeonhwaYeonhwaSR Lightning Slayer. Wraith passive scales Crit DMG off Lightning DMG Boost — substat-heavy build that compounds with Bonnie's Encore Crit DMG buff.Lightning · Slayer (SR)

Penny + Reina + Bonnie is the launch SSR/SR Lightning + Wind support comp. Drop Bonnie for Benjamin / Yeonhwa if you have Spirit King 4pc gear for mono-Lightning ceiling.

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Quick answers

FAQ

What is the recommended level for Avardan?
Recommended level 40. Equipment level ~Lv38+ is the realistic clear threshold. Below that, the doubled stagger gauge and 9× Custos HP make the fight feel grindy.
What element should I use against Avardan?
Lightning. Avardan is Earth element and weak to Lightning — every Lightning attack deals bonus damage. All other elements (Wind / Fire / Ice / Earth) deal neutral to reduced damage. Build the team around Penny / Reina / Benjamin / Yeonhwa.
Can I clear Avardan F2P?
Yes, but slowly. Reina + Benjamin + Francis (pure-SR Lightning + Earth healer) clears at recommended level. Faster F2P clears require pulling Penny via standard banner. Without any SSR Lightning carry, expect 4-5 stagger cycles per phase and ~4-5 minute fight duration.
How much HP does Avardan have?
~682,000 HP at level 40. 9× Custos at the same launch-progression pace — the first major HP wall. Fight typically ends in ~3-4 minutes with a geared Lightning team, ~4-5 minutes with SR-only Lightning + healer.
How do I break Avardan's stagger gauge?
Stagger gauge is ~29,070 with groggy DEF 498 — doubled from earlier bosses. Single-Special stagger breaks are no longer realistic. Plan for 4-5 Special cycles per phase. Reina's HP-scaling Neutralization DMG is the highest stagger contributor; pair her with Penny's Coin burst for max stagger output.
Which character is best against Avardan?
Penny (SSR Lightning Brawler) is the cleanest single-carry clear. Reina (SR Lightning Destroyer) anchors stagger natively. Benjamin (SR Lightning Slayer) provides burst. Yeonhwa (SR Lightning Slayer) chips Crit-scaling damage. Pull any combination of these — Lightning is the only elemental answer.
Should I bring Francis to fight Avardan?
Yes if you need survival anchor — Avardan hits harder (ATK 583) than earlier bosses. Francis's Earth Affliction is wasted on Avardan (Earth resist) but ATK-scaling Drug Field heal anchors longer stagger cycles.
What does Avardan drop?
Lightning-themed crafting materials used in the Spirit King SSR set + Ice Heart SR bridge set + Lightning weapon upgrades. Drops scale with Conquest difficulty tier — repeatable via Conquest tickets. Prioritise farming Avardan to gear up Penny / Reina / Benjamin / Yeonhwa.
Does Avardan have phases?
10 HP phases. Each phase opens a fresh stagger gauge that resets after recovery (10s if not broken). 682k HP / 10 phases = ~68k per phase — pace the fight around 4-5 stagger cycles per phase for sustainable rhythm.
Can I use my Wind core (Esther + Sangun + Jiwon) on Avardan?
Not efficiently. Wind deals neutral damage vs Earth (no elemental amp). The fight is technically clearable with a Wind core but takes ~50% longer than a Lightning team. Build or pull Lightning before attempting Avardan past Conquest tier 1.

Sources & method

All stats and gauge numbers trace back to game data exports in games/mongil/data/boss-details/. Strategy notes are our editorial reading written in our own words.

  • In-game boss data — stats (HP, ATK, DEF), stagger gauge, groggy DEF, weakness matrix.
  • Dungeon entry data — recommended level 40, dungeonKey 20301, single-stage encounter.
  • Community team composition guide — Mongil: Star Dive Lightning launch comps.
  • Community clear runs — Penny + Reina + Bonnie comp validation at recommended level.
Live community tools

Teams clearing Avardan

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