Roblox Re: Rangers X – Cosmic Dreamer Simon Guide

If you're diving into Re: Rangers X and want to unlock the ultra-rare Cosmic Dreamer Simon, you're in for a grind—but it's worth it. This celestial-themed version of Simon isn’t just a reskin; it comes with exclusive abilities,…

May 2, 2026
5 min read

If you’re diving into Re: Rangers X and want to unlock the ultra-rare Cosmic Dreamer Simon, you’re in for a grind—but it’s worth it. This celestial-themed version of Simon isn’t just a reskin; it comes with exclusive abilities, a glowing aura, and a massive power boost that makes it one of the best PvE and PvP units in the game.

However, obtaining it requires completing hidden quests, farming rare materials, and defeating a secret boss. Here’s your step-by-step guide to unlocking Cosmic Dreamer Simon, optimizing its build, and mastering its secret moves—plus a few pro tips to dominate in battles

How to Unlock Cosmic Dreamer Simon

Step 1: Reach Level 50 & Unlock the Celestial Realm

  • You must be at least Level 50 to start the questline.
  • Head to the Stargazer’s Tower (located in the Floating Islands biome).
  • Talk to Astronomer Elias (he only appears between 8 PM and 12 AM in-game time).
  • Accept the quest: “The Dreamer’s Path.”

Step 2: Collect the 5 Cosmic Fragments

You’ll need to find five hidden fragments across different dimensions:

FragmentLocationHow to Get It
Stellar CoreMoon Crater (Jump puzzles)Solve the light bridge puzzle (follow the glowing orbs).
Void ShardAbyssal Depths (Underwater cave)Defeat the Leviathan Mini-Boss (use light-based attacks).
Dreamweaver SilkWhispering Forest (Hidden tree)Interact with the glowing cocoon at the top of the Ancient Oak.
Celestial TearSky Sanctuary (Floating ruins)Solve the constellation puzzle (match the star patterns).
Eclipse StoneObsidian Wastes (Volcano peak)Defeat 10 Shadow Mimics (spawn at night).

💡 Pro Tip: Use a Gravity Boots (from the Tech Lab) to skip parkour sections in the Moon Crater.

Step 3: Defeat the Cosmic Sentinel (Secret Boss)

  • Once you have all 5 fragments, return to Astronomer Elias.
  • He’ll teleport you to the Celestial Arena, where you’ll face the Cosmic Sentinel (a three-phase boss).
  • Boss Fight Tips:
    • Phase 1 (Starfall): Dodge meteor showers and attack with long-range skills.
    • Phase 2 (Void Form): Use light-based attacks (Simon’s Radiant Slash works best).
    • Phase 3 (Dream Collapse): Spam Cosmic Barrage (unlocked after collecting all fragments).

⚠️ Warning: If you die, you’ll lose one fragment and must recollect it—so bring healing items!

Step 4: Awaken Cosmic Dreamer Simon

  • After defeating the Cosmic Sentinel, you’ll receive the “Dreamer’s Sigil.”
  • Go to your Ranger Inventory → Simon → Awaken (costs 5,000 Ranger Coins).
  • Congrats! You now have Cosmic Dreamer Simon—complete with a glowing aura and new abilities.

⚔️ Best Build for Cosmic Dreamer Simon (PvE & PvP)

Cosmic Dreamer Simon excels in burst damage and crowd control, making it ideal for raids and duels. Here’s the optimal build:

SkillUpgrade PathBest For
Cosmic BarrageStellar ImpactAoE DPS (spam in raids).
Dreamweaver’s VeilPhantom ShieldDefense + Reflect (great for PvP).
Radiant SlashCelestial CleaveSingle-target nuke (bosses).
Void DashShadow StepMobility + i-frames (dodge attacks).

💎 Best Gems & Enhancements

  • Weapon: Stellar Edge (Cosmic Damage +15%).
  • Armor: Voidplate (Reduces damage taken by 20%).
  • Accessory: Dreamer’s Pendant (Increases skill cooldown speed by 10%).
  • Gem Setup:
    • Cosmic Barrage: 3x Celestial Gem (boosts AoE).
    • Radiant Slash: 2x Critical Gem + 1x Piercing Gem (for boss kills).
    • Dreamweaver’s Veil: 3x Guardian Gem (max defense).

🎮 Gameplay Tips

✅ Combo Rotation (PvE):
Void Dash → Cosmic Barrage (spam) → Radiant Slash (finisher).

✅ PvP Strategy:

  • Bait enemies with Dreamweaver’s Veil, then punish with Radiant Slash.
  • Use Void Dash to avoid crowd control (e.g., stuns, grabs).

✅ Team Synergy:

  • Pairs well with Pyro Ranger (for burn stacks) and Cryo Ranger (for slows).

🌟 Secret Abilities & Hidden Mechanics

Cosmic Dreamer Simon has two hidden mechanics that most players miss:

  1. “Celestial Overdrive” (Ultimate Form)
    • How to Activate: Hold Cosmic Barrage for 3 seconds to charge a super attack.
    • Effect: Deals 300% damage and stuns enemies for 2 seconds.
  2. “Dreamwalk” (Teleport Trick)
    • How to Activate: Use Void Dash → Cosmic Barrage mid-air to teleport short distances.
    • Best For: Skipping parkour sections in dungeons.

❓ FAQs (Quick Answers)

Q: Can I get Cosmic Dreamer Simon without defeating the Cosmic Sentinel?

A: No, the boss fight is mandatory—but you can team up with friends to make it easier.

Q: Is Cosmic Dreamer Simon better than Shadow Reaper Simon?

A: Yes, for PvE. Cosmic Dreamer has better AoE and sustain, while Shadow Reaper excels in single-target PvP.


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