Trait
Dissolution Spread
For each Poison-type skill brought into battle, Water-type skills inflict 1 stack of Poison on enemies.
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NO.077
Spikecarap Bug(刺盔虫)
Worn Form
Water Poison Phase II Regional Form
In water, ordinary Spiny Helmet Bugs easily get tangled in seaweed due to their long spines, while worn Spiny Helmet Bugs have short spines that both protect them and reduce movement resistance. When disturbed, they curl into a ball and defend with their hard spiny armor.
Dex Number
077
Category
Spiky Creature
Height
0.83~1.19 M
Weight
22.5~29.8 KG
Updated
2026-04-02
Distribution
Unknown
Recommended Skill Sets
Pure Poison Stack Build
Playstyle
At the start, use Corrosive Acid or Plague Breath to quickly stack Poison; mid-game frequently use Venom Infiltration after its energy cost is reduced; Bubble Illusion for survival or baiting. Suppress enemy HP through high-frequency Poison stacking; Venom Infiltration serves both damage output and Poison renewal.
Why this set works
Maximize the trait [Dissolution Diffusion]: Carry 3 Poison-type skills (Corrosive Acid, Venom Infiltration, Plague Breath), enabling all Water-type skills to inflict poison. This build centers on Poison-type skills themselves, reducing Venom Infiltration's energy cost through quick poison stacking, Bubble Illusion ensures survival. The drawback is completely abandoning Water-type output, relying on Poison-type skills for damage.
Venom Infiltration
Why pick this skill
Core damage skill with energy cost decreasing with more enemy Poison stacks (minimum 20), and applies 1 Poison stack on hit. Forms virtuous cycle of Poison stacking → cost reduction → more Poison stacking, while triggering Trait to add Poison to Water-type skills.
Corrosive Acid
Why pick this skill
Stable 2-layer Poison application opener. Quickly stacks poison layers early to activate Venom Infiltration's cost reduction effect, while triggering traits as a Poison-type skill.
Plague Breath
Why pick this skill
Zero-energy Poison Mark application: can refresh Poison when out of energy, or combine with other skills to quickly stack layers; Poison Mark and Poison status can coexist, providing more stack calculations for Venom Osmosis
Bubble Phantom
Why pick this skill
Reaction skill provides 80% damage reduction + hit escape. Compensates for Thornhelm Bug's low physical defense survival weakness. Zero energy can save life at critical moments. Escape mechanism creates switching opportunity.
Water Burst Build
Playstyle
At the start, Brine Bath activates the energy reduction aura; Water Storage further reduces energy cost; Corrosive Acid applies Poison to trigger the trait; finally Spring gushes low-cost high-damage output. Achieve single-turn high burst through energy control, suitable for quickly breaking through enemies.
Why this set works
Built around Energy reduction-damage increase mechanic: Water Storage + Salt Bath double reduction to press Spring to extremely low Energy cost, triggering high power bonuses. Carrying 1 Poison-type skill (Corrosive Acid) activates trait, allowing Spring to apply Poison for sustained damage. Compared to the first set, focuses more on burst output rather than sustained Poison stacking.
Spring
Why pick this skill
Core damage skill. Combined with Water Storage/Brine Bath's cost reduction, can reduce Gushing Spring's Energy cost to extremely low levels (minimum 20), gaining high Power bonus (+40), achieving low-cost high burst damage.
Water Storage
Why pick this skill
Key skill for starting the cost-reduction chain. Next skill's Energy cost -6. Combined with Salt Bath, can reduce Gushing Spring's cost from 60→54→even lower, maximizing damage boost returns.
Saltwater Bath
Why pick this skill
Global energy reduction aura: -2 to all skill costs for self, -3 when countering defense. Stacked with Water Storage makes Spring almost free with massively increased power, while triggering trait to add Poison to Spring.
Corrosive Acid
Why pick this skill
Core Poison application skill. Applies 2 stacks of Poison to trigger Trait, causing subsequent Water-type skills (Spring) to apply Poison. Also satisfies Trait trigger conditions as a Poison-type skill.
Anti-Buff Interference Stream
Playstyle
Observe if the enemy has buff skills: if yes, use Poison Mist to convert; if no, use Venom Infiltration for direct damage. Water Splash maintains energy, Bubble Illusion handles key attacks. Create advantageous matchups through Poison Mist's strategic value.
Why this set works
Specialized counter against buff-type enemies: Poison Mist converts enemy buffs into Poison, removing threats while stacking Poison for your team. Pair with Venom Infiltration for quick damage output, Water Splash for energy cycling, and Bubble Phantom as a safety net. Effective against enhancement-focused opponents, but the damage pace is slightly slower than the second set in standard matchups.
Poison Mist
Why pick this skill
Enemy buffs are converted into Poison. Has strategic value against buff-reliant enemy formations; converted Poison stacks can immediately be utilized by Venom Infiltration to reduce energy cost, serving both utility and damage setup.
Venom Infiltration
Why pick this skill
Core damage. Uses Poison Mist-converted Poison stacks to greatly reduce Energy cost, while applying additional Poison for pressure. Poison-type skill triggers trait.
Water Splash
Why pick this skill
Energy recovery skill: 30 energy cost for 1 energy recovery, supplements energy when Venom Infiltration has high energy cost (insufficient enemy poison stacks), or use with energy reduction chains.
Bubble Phantom
Why pick this skill
Reaction skill provides survival guarantee. Zero energy usable at critical moments without disrupting damage rhythm
Notes
- Thorn Helmet Bug (Worn Form) is a Water-Poison dual-type special attack creature. Trait [Dissolution Diffusion] causes Water-type skills to apply Poison layers when carrying Poison-type skills, with core mechanics revolving around Poison stacking and energy cost linkage. Stat-wise 80 Magic Attack, 85 Magic Defense, 84 Speed are relatively balanced, but low Physical Defense requires attention to survival. Skill pool covers Poison application, energy cost reduction, buff conversion, high power burst and more functions—maximize Poison-Water linkage benefits according to trait.
- Venom Infiltration is core output: more Poison layers means lower cost and can refresh Poison. Corrosive Acid stably applies 2 Poison layers. Poison Mist converts enemy buffs to Poison, highly effective against buff teams. Plague Breath applies Poison mark for 0 cost, setting up follow-up skills. Among Water skills: Water Splash for energy, Water Storage for cost reduction, Salt Bath for global cost reduction, Spring for damage boost with cost reduction—flexible combination needed.
- The skill pool supports 2-3 approaches, but some skills overlap in function (e.g., multiple poison application methods), resulting in ~2 viable builds: one focusing on poison-water synergy for sustained pressure, another on energy control for burst output. Corrosive Acid and Venom Infiltration are both Poison-type, simultaneously triggering the trait to apply poison via Water-type skills.
Gallery
True Body
Shiny Form
Pet Egg
Pet Egg Alternate Color
Evolution Chain
Skills
Lv. Lv.1
Defense
Energy: 1 Defense
Reduces damage taken by 70%. Counters attacks.
Lv. Lv.1
Water Splash
Power: 30 Magic Attack
Deals Magic damage. Self recovers 1 Energy.
Lv. Lv.4
Water Storage
Energy: 1 Status
Energy cost of next Skill used -6.
Lv. Lv.13
Corrosive Acid
Energy: 2 Power: 35 Magic Attack
Deals Magic damage. Enemy gains 2 Poison stacks.
Lv. Lv.17
Corruption
Energy: 1 Status
For each Poison stack the enemy has, enemy gains -30% ATK and MATK.
Lv. Lv.27
Wishing Star
Energy: 3 Power: 110 Magic Attack
Deals magic damage to the enemy creature.
Lv. Lv.28
Plague Breath
Energy: 3 Status
Enemy gains 1 stack of Poison Mark.
Lv. Lv.35
Bubble Phantom
Energy: 2 Defense
80% damage reduction, when responding to an attack: retreat.
Lv. Lv.36
Venom Infiltration
Energy: 5 Power: 120 Magic Attack
Deals Magic damage. For each Poison stack on enemy, this skill's Energy Cost -1, and enemy gains 1 Poison stack.
Lv. Lv.38
Poison Mist
Energy: 7 Status
Converts all enemy buffs into Poison.
Lv. Lv.41
Spring
Energy: 6 Power: 90 Magic Attack
Deals Magic damage. For every -1 Energy Cost of this skill, Power +10.
Lv. Lv.48
Saltwater Bath
Energy: 2 Status
Self gains -2 All Skill Energy Cost, Against Defense: changed to -3 Skill Energy Cost.
Lv. Lv.50
Infection
Energy: 4 Power: 110 Magic Attack
Deals Magic damage. If it defeats the target, converts Poison into Poison Mark.
Lv. Normal Lineage
Star Crash
Energy: 2 Power: 90 Magic Attack
Deals magic damage to the enemy creature.
Lv. Grass Lineage
Etiolation
Energy: 2 Status
Restore 10 energy to self.
Lv. Fire Bloodline
Ignite
Energy: 2 Status
Enemy gains 10 stacks of Burn.
Lv. Water Bloodline
Water Blaster
Energy: 2 Power: 80 Magic Attack
Deals magic damage to the enemy creature.
Lv. Light Lineage
Rainbow Impact
Energy: 3 Power: 100 Magic Attack
Deals magic damage to the enemy creature.
Lv. Earth Lineage
Mud Armor
Energy: 2 Status
Self gains +60% Physical Attack and Physical Defense, Against Defense: additionally doubles own buffs.
Lv. Ice Lineage
Frost Descent
Energy: 1 Status
Enemy gains 4 stacks of Freeze.
Lv. Dragon Bloodline
Rising Dragon Roar
Energy: 3 Power: 200 Magic Attack
Charge up to deal magic damage to the enemy.
Lv. Electric Lineage
Paralysis
Energy: 2 Status
Enemy priority -1. When responding to Defense: Additionally, enemy gains -70% ATK and MATK.
Lv. Poison Bloodline
Poison Swamp
Energy: 2 Power: 80 Physical Attack
Deals physical damage to the enemy creature.
Lv. Bug Lineage
Feigned Sleep
Energy: 2 Status
Restore 2 energy to self; your team gains 1 Devotion: energy cost -2.
Lv. Martial Bloodline
Neutralize
Energy: 2 Status
Self gains +40 All Skill Power.
Lv. Wing Lineage
Eclosion Acceleration
Energy: 2 Status
Self gains +20 All Skill Power, Swiftness.
Lv. Cute Lineage
Sweetheart Endurance
Energy: 3 Status
Self and the enemy gain Adorify: Restores 40% HP.
Lv. Nether Bloodline
Soul Snare
Energy: 1 Status
Steal 3 Energy from the enemy.
Lv. Dark Lineage
Greed
Energy: 2 Status
Self gains 100% lifesteal.
Lv. Mechanical Lineage
Mesh Transmission
Energy: 1 Status
The user gains +30 Speed. If this skill is in slot 1 or 3, additionally gains +80% Physical Attack and Transmission 1.
Lv. Phantom Lineage
Hyperdimensional Projection
Energy: 4 Status
Enemy gains 4 stacks of Starfall Mark.
Lv.
Soak
Energy: 4 Status
Self gains 1 stack of Wet Mark.
Lv.
Plunder
Energy: 1 Power: 60 Magic Attack
Deals magic damage to the enemy creature.
Lv.
Power Devour
Energy: 4 Status
Enemy gains All Skill Power -20; self gains All Skill Power +20.
Lv.
Backroom Deal
Energy: 1 Status
Self gains -100% Dual Attack and Dual Defense, Against Defense: changed to enemy gains -100% Dual Attack and Dual Defense.
Lv.
Annihilation
Energy: 5 Power: 155 Magic Attack
Deals magic damage to the enemy creature.
Lv.
Reinforce
Energy: 2 Status
Self gains +140% Physical Defense.
Lv.
Cheer On
Energy: 3 Status
Self gains +170% Magic Defense.
Lv.
Sunbathing
Energy: 1 Status
Dispels all buffs from the enemy.
Lv.
Stress Response
Energy: 2 Status
Restore 25% HP to self, Counter Defense: instead restore 50% HP.
Lv.
Mental Disruption
Status
Enemy gains All Skill Energy Cost +1. When countering Defense: Instead becomes Energy Cost +3.
Lv.
Severe Poison
Energy: 2 Status
Enemy gains 3 stacks of Poison. When countering Defense: Instead gains 8 stacks.
Lv.
Moisture
Energy: 7 Status
Self gains +190% Magic Attack.
Lv.
Duplication
Status
Each turn, randomly transforms into a skill it doesn't have equipped, and that skill's energy cost -2.
Lv.
Zhen Poison
Energy: 3 Power: 75 Magic Attack
Deals magic damage. This skill's Power +10 for each stack of poison the opponent has. Counter state: Changed to this skill's Power +40.
Lv.
Cleanse
Status
Dispels its own debuffs. For each stack of debuffs it has, this skill's energy cost is reduced by 1. Adaptive Change: Water-type attack skill.
Matchups
受击伤害增加
Earth, Electric, Dark, Phantom
受击伤害降低
Fire, Poison, Bug, Martial, Cute, Mech
Stats
HP 94
Physical Attack 33
Magic Attack 80
Physical Defense 59
Magic Defense 85
Speed 84
Total 435
Handbook Tasks
Codex Project
Progress: 4 items
Catch 1 Pokémon
Target: 1
Catch 1 Pokémon with Amazing Talent
Target: 1
Successfully evolve a creature 1 time
Target: 1
Confirm 2 different forms of Thorn Helmet Bug
Magic Experience x150
Research Points x5
Magic Experience x150
Research Points x10
Light-Splitting Crystal x50
Research Points x10
Wishing Star x1
Research Points x20