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Hell's Park Underside/Burning Area/Elec

Overview[edit]

Difficulty AVery hardEditorial estimate
Charm, revival and attack restrictions require ailment management and a planned kill order.
Recommended demonsKit-based options · reviewed 14 Oct 2026

Either keep every living enemy Muted or overcome the damage penalty with a supported Elec burst. Prevent Charm: Mada clears his team’s ailments whenever he Charms one of yours, and Barrier is removed.

ZeusSummon-only
Elec burst

Keraunos opens Elec affinity and gives focused, counter-ignoring damage against Mada. Build accuracy and use it alongside Mute support rather than assuming raw damage ignores the 150% reverse damage boost.

Setup: Transfer Null Charm if the team’s immunity is not otherwise covered.

BotisSummon-only
Repeated Mute attempts

Dark Eclipse Voltage reacts to allies’ Elec skills with debuffs and an all-enemy Mute attempt. Accursed Lightning provides additional Mute rolls and boosts the Elec damage core.

Setup: Panel 1 removes Barrier at battle start; build ailment infliction.

Watch out: Mada recovers ailments quickly; reapply Mute and prevent Charm-driven cleanses.

BaihuFusion
Party Charm protection

The matching Baihu (Underside) genome provides the party Charm immunity the encounter calls for, preventing Mada’s Charm from continually clearing Mute off his own team.

Setup: Requires the matching Underside genome.

Watch out: Ordinary Baihu without that genome does not supply this effect.

DaisoujouSummon / multifusion
Active cleanup

Preach keeps him functional through Charm and Cleansing Shout removes the team’s ailments and debuffs. Use him first if immunity coverage is incomplete.

Setup: First in action order.

Watch out: Cleansing after Charm does not undo the enemy’s already-triggered cleanse.

Choose complementary roles from demons you own. These are matchup suggestions, not a verified automatic-clear team.

Battle speed: 10,000

Jatayu

Encounter version
HP 10,432
Battle stats Level 55 · combat values calculated
PATK
775
PDEF
553
MATK
775
MDEF
553
STR
199
MAG
199
VIT
87
AGI
242
LUK
177
Elemental affinities
Phys—
FireRs
Ice—
ElecWk
ForceDr
LightNu
Dark—

Mada

Encounter version
HP 33,631
Battle stats Level 60 · combat values calculated
PATK
883
PDEF
765
MATK
883
MDEF
765
STR
237
MAG
237
VIT
237
AGI
109
LUK
200
Elemental affinities
PhysNu
FireDr
Ice—
ElecWk
Force—
Light—
DarkNu

Persephone

Encounter version
HP 14,592
Battle stats Level 55 · combat values calculated
PATK
805
PDEF
636
MATK
805
MDEF
636
STR
213
MAG
213
VIT
156
AGI
172
LUK
180
Elemental affinities
Phys—
Fire—
IceNu
ElecWk
Force—
Light—
DarkNu

Jatayu

Encounter version
HP 10,432
Battle stats Level 55 · combat values calculated
PATK
775
PDEF
553
MATK
775
MDEF
553
STR
199
MAG
199
VIT
87
AGI
242
LUK
177
Elemental affinities
Phys—
FireRs
Ice—
ElecWk
ForceDr
LightNu
Dark—

Combat stats use the screenshot’s level, STR, MAG and VIT with the base stat formulas. Enemy skill bonuses are not included. HP is the recorded maximum.

Sources
Recommended demons

All living enemies must be Muted to disable the 150% outgoing-damage penalty. Use Baihu (Underside) or a reliable repeated area-Mute plan, prevent Charm without relying on Barrier, then attack Elec weaknesses. Respect challenge roster rules.

Earlier recommended alternatives
ZeusBanner exclusive
Banner: Elec damage after Mute setup
Affinity reduction and weakness-triggered damage/icons can accelerate the Elec clear once the all-enemy Mute condition is satisfied.
Needs: Build PATK/accuracy and keep a dedicated Mute/Charm-control setup. Banner option for unrestricted clears only; not legal for a fusible-only or 4★-only challenge.
Watch for: Zeus does not supply the required all-enemy Mute. A strong damage banner cannot replace that encounter mechanic.
Earlier recommended alternatives
BaihuAlternative
Area-specific Charm protection
Baihu (Underside) grants the team Null Charm plus Elec support. The ordinary kit does not grant these bonuses.
Earlier recommended alternatives
AnatAlternative
Fusible Elec damage
Elec area damage and debuff support fit the unrestricted/fusible plan. She cannot satisfy a 4★-only rule.
Earlier recommended alternatives
Jack FrostAlternative
Special-skill alternative
Jack Frost (Underside) with an Elec transfer offers a lower-rarity route; plan MP and use the guide’s prescribed challenge rules.
Kit-based options; tested clears remain in the guide’s team section.


Skills on multiple demons:

Phys Pierce [weak] Underside
Used by: Jatayu

Gains Phys Pierce. Damage received by enemy through this skill is reduced by 70% if the enemy has Null, Repel or Drain Phys attribute.

Source

Phys Pierce [weak] Underside · encounter screenshot
Hell Ultra Booster
Used by: Jatayu

+20% to Max HP. +100 to Phys ATK and Mag ATK. +25% to damage dealt. +100% to Healing skill effectiveness.

Source

Hell Ultra Booster · encounter screenshot
Hellsent: Phys
Used by: Jatayu

+40% to Max HP.. +100 to Phys ATK and Mag ATK.

Activates the following Chain Effect at the start of every second turn of the skill holder: Inflicts high-accuracy Phys damage (Physical, Power: 200) with a Bulwark-piercing effect and a 100% critical hit rate on all enemies.

Source

Hellsent: Phys · encounter screenshot
Black Beckoning [Underside]
Used by: Persephone

Adds Null Mortal. +80% to hit rate. +300 to Phys ATK and Mag ATK.

Source

Black Beckoning [Underside] · encounter screenshot

Skills on left Jatayu only:

Skills on Mada only:

Fire Pierce [weak] Underside
Used by: Mada

Gains Fire Pierce. Damage received by enemy through this skill is reduced by 70% if the enemy has Null, Repel or Drain Fire attribute.

Source

Fire Pierce [weak] Underside · encounter screenshot
Scarlet Inferno [Underside]6 MP
Used by: Mada

Inflicts fire (Magic) damage (Power: 150) on Single enemy.

Activates the following Chain Effect when the attack is successful: Removes Barrier from all enemies, inflicts Fire (Magic) damage 8 times (Power: 20) on random enemies with 100% chance to inflict Charm/Weak on hit enemies.

Source

Scarlet Inferno [Underside] · encounter screenshot
Drunken Giant [Underside]
Used by: Mada

Activates the following Chain Effect at the end of own turn, as well as when an enemy is inflicted with Charm:Cures all status ailments of all party members.

Activates the following Chain Effect when the enemy strikes first at the start of battle: 100% chance to Charm all enemies.

While the skill holder is alive: All enemies will receive the following effect: -150% to damage dealt if there is an enemy without a Mute.

Source

Drunken Giant [Underside] · encounter screenshot
Hell Recovery
Used by: Mada

Adds Null Bind/MortaI. +80% to hit rate. +300 to Phys ATK and Mag ATK. +300% to status ailment auto recovery rate.

Source

Hell Recovery · encounter screenshot
Hell Mega Booster
Used by: Mada

+30% to Max HP. +200 to Phys ATK and Mag ATK. +50% to damage dealt. +200% to Healing skill effectiveness.

Source

Hell Mega Booster · encounter screenshot
Hellbound: Fire
Used by: Mada

+50% to Max HP.. +200 to Phys ATK and Mag ATK.

Activates the following Chain Effect at the start of enemy turn: Place 5 counts of Spirit Chains of Suppression on all enemies. (Once per battle)

Activates the following Chain Effect at the start of every third turn of the skill holder: Inflicts high-accuracy Fire damage (Physical, Power: 300) with a Bulwark-piercing effect and a 100% critical hit rate on all enemies.

Source

Hellbound: Fire · encounter screenshot

Skills on Persephone only:

Dark Pierce [weak] Underside
Used by: Persephone

Gains Dark Pierce. Damage received by enemy through this skill is reduced by 70% if the enemy has Null, Repel or Drain Dark attribute.

Source

Dark Pierce [weak] Underside · encounter screenshot
Hellsent: Dark
Used by: Persephone

+40% to Max HP.. +100 to Phys ATK and Mag ATK.

Activates the following Chain Effect at the start of every second turn of the skill holder: Inflicts high-accuracy Dark damage (Physical, Power: 200) with a Bulwark-piercing effect and a 100% critical hit rate on all enemies.

Source

Hellsent: Dark · encounter screenshot

Skills on right Jatayu only:

Explanation

  • Hellbound: Fire will apply 5 stacks of Spirit Chains of Suppression to you.
  • If even a single enemy is not Muted, then 150% reverse damage boost will be applied to your team.
    • This means that the effect is disabled only when all living enemies have Mute.
    • Mada has +300% to ailment recovery, but his allies do not.
    • Since this is "reverse damage boost" rather than "damage reduction", another way to overcome it is to stack the hell out of your team's damage boosters.
  • If you go first, then Mada inflict Charm on your team.
  • Mada's Scarlet Inferno (Underside) will remove Barriers and inflict Weak and Charm to your team whenever he casts it.
  • At the end of the enemy turn, and whenever Mada Charms someone on your team, he will cleanse all ailments on his team.
  • The Jatayus have Luster Candy and Debilitate for buff control.
  • Persephone can inflict Curse with Vengeance.
  • If the adds are not dead at the start of their second turn, they will hit you with a bulwark-piercing, 100%-crit enrage AoE. Mada will do one too, if he isn't dead by his third turn.

General strategy[edit]

  • You need to either cleanse or null the Charm from Mada. Barriers will not work.
    • Baihu with the skill Baihu (Underside) will make the team immune to Charm.
    • If Baihu is unavailable, make sure the first demon in your team's action order is immune to Charm (innately or with a Null Charm transfer). They don't need to be a Cleric, as you can use an Amrita Shower for cleansing instead. The demon just needs to be immune to allow you to use the item.
  • You will need to inflict Mute to all living enemies in order to disable the enemy's "reverse damage boost" and meaningful damage to the enemy team.
    • Baihu with the skill Baihu (Underside) will automatically try to Mute the enemy team with an 80% chance, at the start of your turn, for up to 3 turns.
    • If Baihu is not available, you will need to bring a demon that can reliably apply Mute to multiple targets every turn.
    • Baihu may become less reliable at higher levels (80 pr 90+), at which point he should run ailment-chance-boosting brands and transfer a chance booster such as Insanity or Madness instead of an attack. You may also need to repeatedly restart the fight, to get a lucky ailment roll that hits the entire enemy team. Put simply: if you don't ailment everyone, then your run is dead, as your damage output will be too low.

Underside skill demons[edit]

Baihu
Baihu (Underside) effect overview
  • Self gets 50% HP, 180% Elec damage, 20% accuracy, 3 MP discount for Elec skills, immunity to Spirit Chains of Suppression.
  • The team gets 20% Elec damage, 20% accuracy, and Null Charm.
  • At the start of your team's turn (for up to 3 turns), Baihu tries to Mute the enemy team with an 80% chance.
Colors
  • Clear Clear for the fusibles ruleset.
  • Red Red for Elec Mazionga as an AoE option.
Skill Transfer
Brands
  • PATK% War, if using a strength-based attack (such as Elec Thunder Slash (Underside))
  • MATK% Spell, if using a magic-based attack.
  • Due to his MP discount, Divine's MP regen is probably not necessary.
Jack Frost
Jack Frost (Underside) effect overview
  • Self gets Concentrate (2.25x damage) on his first action - this is about 63% damage on average across his 2 actions on the first turn. Also gets 50% HP and immunity to Spirit Chains of Suppression.
Colors
  • (Any)
Skill Transfer
  • Use Elec Ziodyne.
  • Jack Frost does not have any MP discounts, so 7 MP skills such as Elec Thunder Reign may be too expensive to cast repeatedly.
    • Elec Thunder Reign (Underside) starts at 7 MP, then becomes 6 MP at max level. This is the best skill he can use, but the cost of maxing it is very high.
Brands
  • MATK% Spell or Divine.
Misc notes

Fusibles challenge[edit]

Team restrictions:

Difficulty Restriction
Lv 3-5 3 or more demons must be fusible*.
Lv 6-8 4 or more demons must be fusible.
Lv 9+ All 5 demons must be fusible.
Lv 6+ 1 or more demons must be grade 79 (4★ base) or lower.
Lv 9+ 1 or more demons must be Clear Clear .

Notes regarding fusibles:

  • Multi-fusions count.
  • Pixie and Slime count, even though you cannot fuse them.
Sample party
Baihu
Skills
Baihu (Underside)
Thunder Reign
Brands
MATK% Divine or Spell
Requirements
-
Indrajit
Skills
Elec Amp
Elec Boost
Brands
MATK% Divine or Spell
Requirements
-
Anat
Skills
Serial Killer
Elec Boost
Brands
MATK% Divine or Spell
Requirements
-
Izanami
Skills
Maziodyne
Elec Boost
Brands
MATK% Divine or Spell
Requirements
-
Thor
Skills
Elec Amp
Elec Boost
Brands
MATK% Divine or Spell
Requirements
Panel 3

Team notes:

  • Purple Indrajit provides ATK Buff and single-target Elec damage.
  • Purple Anat provides ATK Debuff and DEF Debuff, as well as an Elec damage aura and a 1 MP discount for for the team's Elec skills. She also gets a free Concentrate on every second cast of Elec Thunderstorm
  • Purple Izanami provides an Elec damage aura, and another 1 MP discount for the team's Elec skills.
  • Thor: 180 magic, P1 has 20% AoE damage, P3 has 40% Elec damage. Elec Mjolnir (500 power random).

Other options worth considering:

Race challenges[edit]

Holy, Deity, Kishin[edit]

Team restrictions:

Difficulty Restriction
Lv 3-5 All 5 demons must be of the races Holy, Deity, Kishin, Snake, or Fairy.
Lv 6-8 All 5 demons must be of the races Holy, Deity, Kishin, or Snake.
Lv 9+ All 5 demons must be of the races Holy, Deity, or Kishin.
Sample party
Baihu
Skills
Baihu (Underside)
Thunder Reign
Brands
MATK% Divine or Spell
Requirements
-
Zeus
Skills
Elec Survivor
Elec Boost
Brands
PATK% Divine or War
Requirements
-
Thor
Skills
Elec Amp
Elec Boost
Brands
MATK% Divine or Spell
Requirements
-
Sphinx
Skills
Back Attack
Merciless Blow
Brands
MATK% Divine or Spell
Requirements
-
Lugh
Skills
Thunder Slash
Merciless Blow
Brands
PATK% Divine or War
Requirements
-

Team notes:

  • Purple Zeus: 243 strength, has 30% weak-point damage, 25% Elec, Purple has Elec Avatar, P3 has 20% Elec. P2 has 15% weak-point damage for the party. Elec Keraunos (300 power single across 2 hits, can switch target in between).
  • Thor: 180 magic, P1 has 20% AoE damage, P3 has 40% Elec damage. Elec Mjolnir (500 power random).
  • Red Sphinx: 210 magic. Elec Ziodyne.
  • Lugh: 217 strength. 30% weak-point damage for self, and another 30% for the team. He's mainly here for the damage aura, but since his boosters are based on weakness rather than any specific element, he can also run Elec Thunder Slash (or a cheaper Elec spell like Elec Ziodyne) to still contribute good damage.

Other options worth considering:

Low-grade challenge[edit]

Team restrictions:

Difficulty Restriction
Lv 3-5 3 or more demons must be grade 83 or lower.
Lv 6-8 4 or more demons must be grade 83 or lower.
Lv 9+ All 5 demons must be grade 83 or lower.
Lv 6-8 1 or more demons must be grade 79 (4★ base) or lower.
Lv 9+ 2 or more demons must be grade 79 (4★ base) or lower.
Lv 9+ 1 or more demons must be grade 59 (3★ base) or lower.
Sample party
Queen Mab
Skills
Fire Enhancement
Elec Enhancement
Brands
MATK% Divine or Spell
Requirements
-
Albion
Skills
Merciless Blow
Back Attack
Brands
PDEF% Guard x2 or Stout + Guard
Requirements
-
Thor
Skills
Elec Amp
Elec Boost
Brands
MATK% Divine or Spell
Requirements
-
Titania
Skills
Ziodyne
Merciless Blow
Brands
MATK% Divine or Spell
Requirements
Panel 3
Baihu
Skills
Baihu (Underside)
Thunder Reign
Brands
MATK% Divine or Spell
Requirements
-

Team notes:

  • Purple Queen Mab: 223 magic, has Merciless Blow and 15% damage, P1 gives 20% damage, P3 gives 30% damage. Also has 25% Elec damage aura for the team. Elec Cuailnge (180 power AoE w/ Concentrate). Sets up a 1-turn ATK Buff at start of combat.
  • Purple Albion: Deals high damage based on PDEF. Purple has Wretched Blow. 15% damage from p1, 30% damage from p3. 30% damage aura for the team. Elec Pure All-Out Ruin (200 power single-target, pierces bulwarks). Also has an Order Crest that frequently hits the lowest-HP enemy with a 100-power single-target attack (inscribes when an ally hits an enemy weakness, an enemy hits your party's weaknesses, or a party member is revived).
  • Thor: 180 magic, P1 has 20% AoE damage, P3 has 40% Elec damage. Elec Mjolnir (500 power random).
  • Purple Titania: 235 magic, has Elec Boost, Purple has Back Attack, P3 has 10% Elec damage. Elec Ziodyne and Merciless Blow transfers.

Other options worth considering:

Hell's Park Underside
Area Phys Phys Fire Fire Ice Ice Elec Elec Force Force Light Light Dark Dark
Spike Hell Spike Hell (Phys) Spike Hell (Fire) - - Spike Hell (Force) -
Kawara Kawara (Phys) - - - - Kawara (Light) -
Grave - - Grave (Ice) - Grave (Force) - -
Sanzu River - - Sanzu River (Ice) - - Sanzu River (Light) Sanzu River (Dark)
Blood Pond - - - Blood Pond (Elec) - - Blood Pond (Dark)
Hell Cafe - Hell Cafe (Fire) - - Hell Cafe (Force) - Hell Cafe (Dark)
Burning - Burning (Fire) - Burning (Elec) - - -