Catch A Monster video companion

SoulGuard Guide: Is The Nightmare Dungeon Boss S-Tier In Catch A Monster Roblox?

A Catch A Monster SoulGuard companion guide covering Shadow Cube Egg and Nightmare Dungeon sources, vulnerable debuffs, Spire Dominance, and whether the rare boss is worth farming for Spire, dungeons, or auto-farm teams.

guideCatch A Monster SoulGuard guidePublished 2026-05-24Cyclone9 companion

Best route

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SoulGuard is most compelling as an Endless Spire monster because the video shows its Spire Dominance passive giving pet damage inside Endless Spire. It is worth chasing if Spire climbing is your goal, but Cyclone9 does not treat it as an automatic best dungeon tank or everyday auto-farm pet. Shadow Cube Egg and Nightmare Dungeon farming are the two routes discussed in the video, while Si's one-in-20 dungeon estimate is an early observation, not a guaranteed drop rate.

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Video chapters

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0:00

SoulGuard in-depth guide

The video opens by framing SoulGuard as the rare Nightmare Dungeon boss worth comparing against the newest high-value Catch A Monster pets.

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0:22

How to get SoulGuard

Cyclone9 explains the two routes discussed in the video: Shadow Cube Egg chances and Nightmare Dungeon farming.

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0:45

Nightmare Dungeon drop rate

Si shares his early farming experience and asks the community to compare results, so the page treats the estimate as observed testing rather than a fixed global rate.

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1:43

SoulGuard skills and vulnerable debuff

The guide breaks down Soul Slash and Ghost Fireball, both of which are shown applying vulnerable to enemies.

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2:16

Spire Dominance passive explained

Spire Dominance is the main reason SoulGuard looks exciting for Endless Spire teams in the video.

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2:40

A-rank level 85 stat check

Cyclone9 uses an A-rank level 85 comparison point to put SoulGuard's damage, health, and crit context into a practical account-building frame.

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3:17

SoulGuard vs Armored Dracospike

The comparison shows SoulGuard leaning damage and Spire pressure while Armored Dracospike remains the tankier style of monster.

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4:35

SoulGuard vs Poseidine

Poseidine is used as another recent evolution comparison so players can understand where SoulGuard sits among newer pets.

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5:05

SoulGuard vs Jokaire

Jokaire enters the discussion because it brings different utility, including farming value that SoulGuard does not replace by default.

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5:38

SoulGuard vs Luminite

The Luminite comparison helps separate dungeon-survival roles from SoulGuard's Spire damage role.

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6:11

SoulGuard vs Umber Reaver

The video checks SoulGuard against another damage-focused recent monster to judge whether the new boss deserves the hype.

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6:46

S-tier Spire verdict

Si's strongest verdict is that SoulGuard is a serious Endless Spire candidate, while other modes are more situational.

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7:27

Auto-farm and rank luck verdict

The guide explains why SoulGuard is not Si's default auto-farm pick when pets with rank luck, gold, experience, or farming passives can fit that role better.

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8:17

Should you farm SoulGuard?

The video ends by asking players to share drop counts and test results so the community can refine the SoulGuard verdict together.

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Guide companion

Use this Catch A Monster route in-game

Use these notes while farming materials, checking costs, testing routes, or deciding what to do next.

Shadow Cube Egg and Nightmare Dungeon routes
Vulnerable debuff and Spire Dominance value
Spire, dungeon, and auto-farm verdict

Step-by-step

Follow the in-game plan

Use the video as the walkthrough, then use these notes as the practical checklist.

Start with the two SoulGuard routes

The video frames SoulGuard as obtainable through the Shadow Cube Egg or through Nightmare Dungeon farming. That makes the first decision simple: use the egg route if you have access to it, or farm Nightmare Dungeon if you are directly chasing the rare boss.

  • Use Shadow Cube Egg chances when you have them.
  • Farm Nightmare Dungeon when SoulGuard is the direct target.
  • Treat early dungeon drop-rate talk as community testing, not a guaranteed rate.

Understand why the vulnerable debuff matters

Cyclone9 shows SoulGuard's Soul Slash and Ghost Fireball skills applying vulnerable. The practical value is not just that SoulGuard can hit. It can repeatedly set enemies up to take more pressure from your team.

  • Soul Slash is shown launching surrounding slashes.
  • Ghost Fireball is shown casting four nether fireballs.
  • Both skills are discussed as vulnerable sources in the video.

Treat Spire Dominance as the main hook

The reason SoulGuard gets the strongest verdict is Spire Dominance. Si calls out the Endless Spire pet-damage passive as the mode-specific reason to care about this boss, so the safest verdict is Spire-first rather than best-everywhere hype.

  • SoulGuard looks strongest when Endless Spire is your goal.
  • The passive is the biggest reason to farm and test it.
  • Do not judge the pet only by generic damage numbers.

Compare by mode instead of by hype

The video compares SoulGuard against Armored Dracospike, Poseidine, Jokaire, Luminite, and Umber Reaver-style roles. That comparison matters because each pet is useful for a different job. SoulGuard is not automatically your best tank, dungeon support, or farming passive pet.

  • Armored Dracospike is framed as the tankier comparison.
  • Luminite remains important for dungeon-survival logic.
  • Jokaire and Void Iceplate-style picks can make more sense for farming goals.

Farm SoulGuard if your account needs the Spire role

The practical recommendation is to farm SoulGuard hard if you want to push Endless Spire. If your team still struggles to survive Nightmare Dungeon, a tankier or dungeon-specific pet may be a better immediate priority. If your main goal is normal auto farming, prioritize pets with rank luck, gold, experience, or farming-focused passives.

  • Spire climbers should care most about SoulGuard.
  • Dungeon survival may call for different team pieces.
  • Auto-farm teams should still value farming passives.

Mentioned in the video

Quick facts from the video

Main pet

SoulGuard / Soulguard

Rarity and element

Secret Fire pet on CAM Hub

Video routes

Shadow Cube Egg or Nightmare Dungeon

Main passive

Spire Dominance

Strongest use case

Endless Spire climbing

Claim boundary

Drop-rate estimate is early testing

FAQ

Catch A Monster SoulGuard guide questions

Quick answers for the route, materials, mechanics, and next steps covered in the video.

How do you get SoulGuard in Catch A Monster?

The video covers two routes: Shadow Cube Egg chances and Nightmare Dungeon farming. Cyclone9's dungeon drop-rate estimate is presented as early experience, not a guaranteed global rate.

Is SoulGuard S-tier in Catch A Monster?

SoulGuard looks like an S-tier Endless Spire candidate in the video because of Spire Dominance, but Cyclone9 does not present it as the best monster for every mode.

Is SoulGuard good for Nightmare Dungeon?

It can help, but the video is cautious about calling SoulGuard a top dungeon pick because dungeon teams often need tankiness and dungeon-specific passives.

What is SoulGuard's best use?

The strongest use case from the video is Endless Spire climbing, where Spire Dominance is the main reason to test and farm SoulGuard.

Should I use SoulGuard for auto farming?

SoulGuard is not Cyclone9's default auto-farm pick in the video. For normal farming, pets with rank luck, gold, experience, or farming-focused passives may make more sense.

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