Facing the Nether Spider raid on Raid Shadow Legends doom tower Nether Spider (especially Nether Spider raid floor 90)? You’re in good company – she’s poison-central, wave-heavy, and demands the right team setup. This guide shares how to handle the raid Nether Spider, the best Nether Spider champions, how to beat her efficiently, and gear/skill advice.
What’s Up with Agreth & the Spider Tower?
Located in the spider tower or nether tower rotation floors (floors 20, 60, 90 in Spirit rotation; 30, 70, 110 in Magic), Agreth loves spitting poison and summoning spiderlings to heal herself. She uses:
- Envenomed Strands (A1): Poisons all enemies
- Brood Feast (A2): Summons spiderlings with Counterattack buffs
- Elder Lurker (A3 passive): Deals damage based on Turn Meter lost, ignoring DEF
- Tide of Toxins (A4 passive): Damages poison debuffs and spreads Poison Sensitivity
- Built-in Almighty Immunity and Strength, making poison unavoidable
Agreth the Nether Spider Skills
- A1: Envenomed Strand [ATK]. Attacks all enemies. Places a 5% [Poison] debuff for 4 turns. Will repeat the attack 1 time for each Spiderling without any active buffs. The [Poison] debuffs cannot be resisted or blocked.
- A2: Brood Feast [ATK]. Spawns 4 spiderlings, then places a [Counterattack] buff on all Spiderlings for 3 turns. Will team up with all Spiderlings to attack all enemies if a Spiderling is spawned by this skill.
- Passive 1: Elder Lurker. Counterattacks when enemy decreases Agreth’s Turn Meter. The damage inflicted is equal to the amount of Turn Meter lost. Will ignore 100% of DEF.
- Passive 2: Tide of Toxins. Attacks all enemies at start of each turn. Deals damage from all [Poison] debuffs on each enemy instantly. When attacked by an enemy under a [Poison] debuff, increases the duration of all debuffs on the attacker by 1 turn, then places a 25% [Poison Sensitivity] debuff on them for 3 turns. When attacked by an enemy that has no [Poison] debuff, places a 5% [Poison] debuff on the attacker for 4 turns. This debuff cannot be blocked or resisted.
- Passive 3: Almighty Immunity. Immune to [Stun], [Freeze], [Sleep], [Provoke], [Block Cooldown Skills], [Fear] and [True Fear] debuffs. Also immune to HP exchange effects, HP balancing effects and cooldown increasing effects.
- Passive 4: Almighty Strength. Damage from skills that scale based on enemy MAX HP cannot exceed 10% of the boss’ MAX HP when attacking the boss.
- Passive 5: Almighty Persistence. All Turn Meter reduction effects are reduced by 50% when used against the Boss.
- Spiderlings [4 minions]. Attacks all enemies. Places a 5% [Poison] debuff for 2 turns. Cannot be resisted or blocked. Heals Agreth by 10% each time spiderling counterattacks. Places [Ally Protect] on Agreth whenever [Counterattack] is removed or expires. [Ally Protect] cannot be removed.
The Best Strategy: How to Beat the Nether Spider
Key Tips
- Do not attack spiderlings with A1 AoE – they counterattack and heal Agreth. Instead, use single-target champions or avoid AoE in auto.
- Your team must have high HP, Defense, and Speed because poison cannot be resisted.
- Avoid Turn Meter reduction champions – they trigger heavy counterattacks from A3.
Dealing with Spiderlings
- Ignore the spiderlings – disable AoE, focus on sustain and whittle Agreth down. This is safer for hard DT floor 90 runs.
- Spam heavy nukers to kill waves fast, then finish boss. Use champions like Drexthar Bloodtwin for HP Burn, and stunners/freezers on spiderlings or ignore them entirely.
Gear and Stats Needed
- Acc: 330+ (Hard; 100 Normal) for debuffs/HP Burn/cleanses (auras/leader help).
- High HP/Def (40k+ HP, 2k+ Def) for poison tanking (no Res needed).
- Speed: Tune cleansers > Agreth (~250-260), team 180-220.
- Sets: Lifesteal (sustain), Acc/HP/Def/Vitality, Deflection (transfer), Offense (Burners).
- Warmaster/Giant Slayer for non-Burn DPS. Max relevant skills (cleanses, A2s).
Best Champions Against Agreth
Not sure who’s worth leveling? Check the full Champion Ratings & Tier List to find more poison-resistant support or damage dealers.
Drexthar Bloodtwin
- Role: HP Burn dealer; poison synergy
- Build: Lifesteal or Offense sets, with Speed → Crit Rate, max A2
- Why: HP Burn is boss-friendly and calculates on enemy MAX HP for high damage.
Scyl of the Drakes
- Role: Sustain & Slow + passive heal each round
- Build: Resistance/Speed or Vitality; no AoE
- Why: Decrease Turn Meter on boss, healing helps offset poison waves.
Mausoleum Mage / Melga Steelgirdle / Reliquary Tender / Runekeeper Dazdurk
- Role: Poison Sensitivity cleansers
- Build: Accuracy + HP sets, with max skill upgrades
- Why: Removing Poison Sensitivity debuff is huge for team survivability.
Duchess Lilitu / Rector Drath
- Role: Reviver + healer
- Build: Lifesteal/Veil sets; high HP and Defense
- Why: Revive dead allies after poison detonation; Veil reduces incoming damage.
Helior
- Role: Debuff transfer
- Build: Deflection + Accuracy
- Why: Transfers poison or sensitivity debuffs back to Agreth – massive value.
Paragon
- Role: Unkillable self-sustaining tank
- Build: Deflection or Toxic set, Warmaster mastery
- Why: With his permanent Unkillable, he can solo tank while others die. Works best with minimal AoE nukers.
Budget-Friendly & Free-to-Play Champion Alternatives
For Drexthar Bloodtwin:
- Armiger (farmable from Campaign): Provides consistent Turn Meter control and is accessible to all players
- Coldheart (Void Rare): Strong single-target damage that scales with enemy MAX HP
- Any champion with HP Burn such as Miscreated Monster or Mordecai
For Scyl of the Drakes:
- Apothecary (farmable): High-speed support with team healing
- Rector Drath (if available): Revive and healing capabilities
- Relickeeper or Warmaiden for damage if sustain isn’t critical
For Mausoleum Mage/Cleansers:
- Reliquary Tender (Rare, accessible): Cleanses debuffs and provides healing
- Spirithost (farmable): Attack buff and cleanse
- Doompriest (if available): Passive cleanse each turn
For Duchess Lilitu:
- Rector Drath (Epic alternative): Revive on death passive, strong healing
- Gorgorab (Void Rare): Speed aura, revive, and attack buff
- Reliquary Tender (Rare): Budget reviver with cleanse
For Helior:
- No direct budget substitute exists for debuff transfer, but focus on:
- Strong cleansers like Reliquary Tender or Doompriest
- High-resistance champions to reduce debuff duration
- Immunity set users if available
Equipping & Mastery Tips
Need help choosing the right masteries? Test out builds in the Mastery Simulator before committing scrolls. Here are some tips:
- Accuracy: Aim for 330 on Hard, 100 on Normal. Accuracy buffs or leader auras help reduce gear needs.
- Resistance not resisted: Poison and Poison Sensitivity can’t be resisted, so stack HP + Defense.
- Set your teammates to no A1 AoE in Team AI to avoid spiderling hits.
- Turn off A2/A3 if random targeting, especially for units with AoE risk.
Sample Team for Hard Doom Tower Floor 90
Want to plan your gear, shards, or resources better? Use the tools on our Tools Overview page. Below are my recommendations:
- Scyl of the Drakes (A1 disabled)
- Duchess Lilitu for group sustain + revival
- Drexthar Bloodtwin for HP Burn
- Mausoleum Mage to remove poison sensitivity
- Helior (optional) or Mausoleum Mage + Helior combo
- Or go full cheese with Paragon + heavy nukers, let him tank, others die, then auto-run.
Why This Works on Nether Spider Raid
- Minimizes healing loops: Spiderlings can’t counter-heal if AoE is avoided.
- Poison synergy: Drexthar + cleanse champions create damage balance.
- Survivability: Passive heals, revivals, and Unkillable are survival tools.
Common Mistakes to Avoid
- Using AoE attacks on spiderlings (triggers counter-Poison/heals).
- TM reduction/steal champs (Elder Lurker nukes).
- Random-target AoE (e.g., unconfigured A2/A3).
- No cleanse rotation (Poison Sensitivity + detonation wipes).
- Removing spiderling Counterattack (triggers extra A1 Poisons).
- Low Acc cleansers/HP Burners (330 Hard needed).
- Ignoring affinity (Magic/Spirit best vs. her rotations).
Final Thoughts
Mastering raid nether spider, especially the nether spider raid floor 90 hard mode in the spider tower, requires patience and the right champions. Whether you run sustained immunities with Scyl and Duchess, or cheesy tank-first auto-runs with Paragon, this boss rewards smart, poison-aware strategies. With solid gear, debuff control, and team cohesion, you’ll conquer Agreth, the Nether Spider, more reliably in 2025.
What team do you use for the nether spider raid? Any underrated champs saved your run? Share your experience in the comments – I’d love to see your squad comps!
